i got 1990 k5 blazer 5.7 had it rebuild with a few up grades everything is pretty mush stock i up graded the cam to a howard cam rattler lift 225/230 duration 0.50/227/235 centerline 03 i still have the factory swirl port heads i got headers 3' pipes all the way back i up graded my torque converter to 2000 to 2400 stall and 4:10 gears i just put my engine in about a week ago it was a tbi so i converted it to carb...im having problem trying to get it to run right i put a brandnew edelbrock carb 1406 on it..i got 12-887 holley regulator set it to 6 psi i got it to run starts up good but its backfiring and popping out my exhaust ..i have a vacuum port on my regulator but did not hook it up dont no if thats the problem or not..or is the carb to small for my set up...you can smell the burning and the raw gas in park when u accelerate and give it more gas it sound good but at idling its popping and backfiring like someome popping fire crackers..tell me what you think
I have an Edelbrock 350 (sbc) supercharged with two 600 Edelbrock carbs, both appear to be letting fuel past the accelerator pump when under hard acceleration, any ideas?? currently in the top hole position
I'm running a Blueprint 350 with a 1406 (600CFM). I tried both the top and middle holes while I was first tuning the engine. The top hole definitely delivers a bigger squirt, which made my engine bog for a split second, nothing too horrible. I went to the middle hole and the squirt felt more appropriate. I guess I can see how the top hole would deliver too much initial squirt in a bigger carb (750) that is already providing enough flow. Setting the floats properly is also critical as you mention. Good video.
On a 750 cfm it's super bad on that top hole . Just drowns the motor ! I know several ppl running blue print engines . Seems like a good set up ! Be e safe !
SAme carb, but my 350 has been backfiring through the front bores and I ended up changing the rod to the bottom hole and it has only done it one time since. Am happy with the current setup.
Anytime buddy . Easy thing ta swap if your fightin something else . And then ya got more problems and dont know it yet ! Glad it helped brother ! Be safe ! I know mechanics that have over looked it and got ther ass kicked ! Lol
This is a great video. I’m having the same problem. 650avs on my 429 big block. Mash the throttle from a stop and it flat lines for like two seconds then runs hard. My wide band tells a different story. It goes completely lean like 19-21 which to means not enough fuel shot? If too much fuel it would flood and the wide band would indicate 10 and below but my MSD would lite it anyway. Car guys suggested a stiffer pump assembly from the bigger 750-800 series carbs edelbrock part #1470 in addition to a bigger nozzle for a faster greater volume fuel shot. What do you think? My builder suggest a Quick Fuel 750 SS-AN series and call it a day…..
If its just a mild build , and your not sea level . Sure sounds to me like its flooding from the stab of the peddle . Takes a cpl seconds to recoup and come around ! Have you ben inside the carb yet ? Ive seen them brand new outta the box with the floats outta wack bad ! I know if you drop the float level to much . It doesnt fill up inside enough to fill the pump well . And results in a partial/half squirt ! If you havnt tried the middle hole on the pump arm give it a shot ! I had a 429 in a work truck . 262 comp cam headers ! Hauled ass ! I leaned the jets one size it ran hard ! But im also mile high brother ! Double check fr vaccum leaks ! Try the middle fr sure if you havnt already ! Check a cpl spark plugs . Are they black n wet ? Or white and dry ?
@@vela07 I have since done a lot of mods to my car including twin superchargers and a 750 double pump. if you still have the endelbrock I would try the different levels of pump shot along with pulling the needles up quicker as you engine transitions from light throttle to WOT. I used to have my enrichment come in around 8” inches of vacuum which helped dramatically with the off idle stumble. I also found the Edelbrock and my dizzy vacuum advance liked the ported manifold vacuum better because it gave me a more stable idle timing then the advance would kick in as you mashed the throttle. Trial and error but make sure you get those vacuum leaks taken care of first and foremost.
@@70GalaxieMan we tried the larger pump shot nozzle and the weaker springs to make the rods open faster. I'm now thinking about going back to the original jetting and see what it does
Well,I have had my carb set on all three of the hole's your talking about,and it run's and drives on all three,and they all have a hesitation/bog down on acceleration.So what is causing that?I'm running a Buick 455 (1970)with a cam,.20 over,head's opened up to like stage 1 spec's, Edelbrock performer intake,MSD hei distributor, Edelbrock AVS2-800CFM carb..
Have you changed jets or anything ? I just did a carb last weekend . Some one changed jets . It was so fat it stumbled bad . Went back to stock calibration that the carb came with . Problem solved on this one any how !
You really need to look inside the carb even brand new ! I've seen floats sank on one side not the other brand new out of the box . If the floats are to low on Edelbrock style carbs don't fill the well up all the way for the accelerator pump if the floats are set to low . You almost have to get inside and verify some stuff is right before continuing on !
I just bought the carb,brand new,after fucking with a Holley Brawler carb for about a year,and have not done anything but change the pump adjustment setting,and fuel/air mixture screws.I am waiting for a phenolic spacer plate for heat dissipation.The guy at Edelbrock said that this carburetor was a direct fit to my intake manifold,with no spacer plate needed.I'm getting ready to set the fuel/air mixture by using a vacuum gauge hooked up to the intake.Next I guess would be to take the top off and check the float level's.Damn,you guy's waste no time helping a brother out,that was the quickest response time I've ever seen.Awesome!!Thank's!
@@scottwiegand2310 always glad ta help a brother out ! Ive seen so many problems brand new outta the box ! You just gotta get in side n make sure everything is right first . Check the the float drop and float level for full . Check your jet sizes while your ther . Pull a primary . Check numbers on jet . Pull a secondary jet fr grins . Check numbers for size . Go on line make sure those jets are what the carb should come with . All the jets should have a 120 number . Then 3 more numbers . Its the other 3 you need to pay attention to ! Itll be like 401 . Take those three numbers , minus 300 . Gives you your jet size . So a 401 . Is a jet size of 101 . If its a 398 . Minus 300 . Is a jet size of .098 . So number 98 jets . Check the needles also . Make sure ther what ther supposed to be . Stay in that middle hole on the accelerator pump !
Right on,man,I really appreciate the advice.I will definitely open her up and check thing's out,I'm at work,so it might not be today.I will be sure to post what I find when I do.Thank's again and have a good one!
That’s interesting, everything I’ve read and researched said if you have a flat spot to wise up to this position because it gives a larger squirt of fuel. But I have to admit, it’s not helped one bit. I’m going to try going back to standard position. Ford 400 with flat head pistons and a mild cam, headers and can’t get it to run like my bronco with the same engine minus the upgrades mentioned. Any other thoughts on what to adjust if this doesn’t work?
Look at how many ppl in here posted Bam ! Fixed my flat spot ! Didn't watch any videos my self from others on flat spot on launch . But common sense would say if anything a flat spot would be rich . Thats not directed at you . Just thinking you said most other videos said to go fatter on launch . In my mind . Im thinking if you're lean on launch after squirting all that fuel in ther . Youd be having other issues after launch . Only one kid posted some smack about being on the top hole . And his stock small block runs great he said . Its all about jetting he says . Well youd have to run super lean jet wise to off set the accelerator pump squirt . My 2 cents for ya ; If its a new carb ? Go back to stock jets n needles . Stock jets fr secondaries . Put the accelerator pump mid hole ! I talked to Edelbrock . They assured me ; they don't ship them in the top hole ! But they are . And its jackin the average joe up . Its like someone from holley is working at Edelbrock and sabbatoging the carbs ! Make sure the floats are correct ! If you get the floates to low . The one side cant fill the well for the accelerator pump . And you get a partial squirt off line . That will dump you on your face also ! Go back to stock settings . Middle hole see what happens . Check for vacuum leaks ! Brake port on back of carb fr sure . In a new Edelbrock . The secondary jets are one size smaller than the primary jets . So what i do . Is swap the secondary jets to the front a the carb . Put the primary jets in the back a the carb wher secondary jets were . Now your one jet size lean on primary jets from stock . Dont change needles ! Just swap jets front ta back . And then ill plug my vacuum advance . Permanently . So i can run another 5 , 6 degrees of intial timing . Stronger bottom end ! You can tell if your lean or fat jetting wise by how many turns out your idle screws are . If yr idle screws are only out 1 ta 2 half turns and its happy . Your on the fat side . If you have to turn the idle screws out 6 , 7 half turns to make it happy . Your on the lean side ! Go Back to stock settings . Check for vacuum leaks . Check float levels . Mid hole on accelerator pump arm . Watch the Edelbrock staging spring video i did . Help ya some that way . I show you how to check your staging while the vehicle is running . Im here if you need anything brother !
What if I’m in the middle hole and still have a flat spot … I have 2 carbs same 600 manual choke … one didn’t like to start …. And the other has a flat spot on take off and I just checked and they both are on middle hole …. (355 sbc
Check for vaccum leaks first ! That could cause both problems on each carb ! Make sure you have the right gasket , intake to carb . Check yr brake vscvum on back of carb . Make sure its tight ! Make sure all vaccum ports are good ! On the intake also . All ports hooked up or plugged ! Check your fuel out put before the carb . Rule a thumb is one pint mininum every 15 seconds . Make sure your getting good fuel pressure ! We ll start eliminating some stuff that it could be ! All that stuff checks out hit me back . We ll check a few more things !
Is there any adjustments you suggest for my truck not starting right away? I have to keep cranking the key and give it some gas until it finally turns over Thanks! Crate sbc 350 with edelbrock 750
@@justintutogi47 are your float levels right ? If you get the floats to low on Edelbrock carbs it doesn't fill the accelerator pump well all the way . So you only get a partial squirt from the accelerator pump . Also check your timing !
Ive seen this so many times its rediculous ! Edelbrock assured me they Do NOT ship like this ! What ever . Ive seen it twice now brand new outta the box ! Be safe !
Hello I have an AVS2 650cmf on my 350 sbc and when I accelerate abruptly the engine shuts down, has a new gas pump and works at 5 psi and there's no vacuum leak on the lines. What do you recommend me to do?
Check yr carb to intake gasket . Make sure its not suckin air around the base a the carb some wher ! Have you checked float levels in side the carb ? Ive seen carbs brand new out of the box that had the float levels wrong . If the floats are set 2 low the accelerator pump well cant fill up far enough to give a full squirt . Itll make it fall on its face . Do you have a squarebore intake ? Or a spreadbore intake ? Some times when you put a squarebore carb ( edelbrock ) on a spreadbore intake . Itll suck air at the widest part of the intake ! Did you put a spacer between the carb and intake ?
@@theweldor757 Ah perfect then check these aspects, the intake is square bore and does not have any spacer, thank you very much for your time, I hope to solve the problem.
Could you uploads vid of gas shot from accelerator pump nozzle in middle hole versus top hole? So we can see what to much looks like. I always thought my stumble was from too little shot of gas.
If your float level is set to low . It wont fill the accelerator pump well all the way . Resulting in a partial squirt ! I dont have a edelbrock on any thing at the moment brother !
Good input brother ! Thanx ! In my mind thats all i could figure it would be for . Had a guy who got suckerd into a holley for his 289 . Ran like chit . Next garage told him you bought the wrong holley . Buy this one ! Ran like crap . Only know one guy that works on holleys . Sent him up ther . O you bought the wrong holley ! Poor bastard bought a 3rd holley . Seen him a cpl days later . Hows yr car runnin ? 289 in a mustang . Runs like chit still . I drove it around the block . OMG . F N horrible ! 4 speed car . Wouldnt even chirp the tires side steppin the clutch . Told him look , i got a Edelbrock off my 390 . Wanna try it ? Sure nothin ta loose . Little 289 got a good 25 , 30 foot patch a rubber . Dam thing hit like 125 mph in 3rd gear . Guy called me mr Edelbrock fr the next few years lol . My son in law put the 500 cfm on a 302 in a mavrick . That seemed to run real good . Thanx for checkin out my channel and your input ! Be safe brother !
I just bought an edelbrock 750 same problem I’m actually under the hood now trying to figure it out ran across your video and looked at mine sure as shit it in the top hole! I’m going to move it and hopefully that’s it 👍
Hey I have run the bottom hole on my ford 400 and the middle but bottom hole rilly gets rid of any hesitation out the gate problem with that top hole is no body buys a cam big enuf to use it Sept on a blower motor just my 2 cent
Good 2 cents worth ! Ben around a cpl motors now . 650 hp . 800 hp . Top hole was still to much . One guy said hes runnin top hole and its workin . But its on a tunnel ram .
I added a Thompson Powerplate and was able use the top hole. If you dont know what that is ill try and explain. The plate deflects the stream of fule from thre nozzle. So instead of the punp shot looking like it comes out a garden hose it fans out. Even on the middle hole i could notice a difference. Better fuel atomization is my guess. They cost about 40 and mount under the nozzle. There are videos with side by side comparison. Being honest the only reason i bought one was someone i know tryed and i drove his Camaro with and with out and it also was a noticable difference. So my fairly hot 302 woth a AVS2 650 and my buddies SBC 400 with a Performance 750 both saw improvements
@@theweldor757 ua-cam.com/video/2atbXqsO0ao/v-deo.htmlsi=jvJ-d6Yk6IP7Eytt Just a quick side by side. I thought I was tripping about much of a difference it made. I had my buddy ride with me and ask if he noticed anything. He's the real deal car guy and after 3 pulls from cruising at 1200 RPM in 1st he said "your driver's side is lifting higher, you got more torque,, what'd ya do?". Like I was saying the 302 is fairly hot so any thing I can do to add more usable fuel it likes. Side note we messaged back and forth when I 1st got the AVS2 about a year ago!!!! Appreciated you then for the help so I figured if I could pay it forward why not.
Thers ben a cpl ppl out all of them that have said the top hole worked . One guy was right wher yr at engine wise . 289 ? 302 ? Had the edelbrock 1404 . One guy said he found a vacuum leak . And then had to go back to the middle hole . My neighbors beefed up 427 didn't like the top hole . But were mile high here
Check fr vaccuum leaks ! Did you check your float levels ? If the float on the accelerator pump side is low it will give a half squirt ! Have you changed any thing inside the carb ?
I wont put them on straight outta the box anymore . To many problems ! First thing i do with a new carb is take it part and make sure every thing is right !
@@kevinmacshara4291 typically you cant go more than 2 sizes up or down with needle changes with out changing the jets also . What i like ta do is swap the jets front ta back . The jets in the back are one size smaller than the primary jets up front . When ya get the carb brand new . Leave the meetring needles alone . Yours were probably 71/47 if i remember right new out the box . Take and switch the jets while you check the floats . Check the rubber on the accelerator pump make sure its not rolled up while yr ther brother !
I'm a try that .....I've got a marine edelbrock 600 electric choke.....it's runs but when u try and run the boat it surges......its in the first hole as well too....thanx
Any time brother ! The top hole if yr just cruisin low rpm , steady . And romp it . Itll choke out some n then come around . But if yr just cruisin . Steady . Mid rpm , , say 2800, 3000 rpm . And DONT give it any pedal . And it starts surging . Id check fuel pressure . At least 4 psi fr single carb . 6 , 7 psi for dual carb min . And as much as i hate to say it 🙄. Brand new dont mean nothing any more . Ive seen the floats totaly outta calibration new outta the box . Ya keep havin trouble . Poke inside the carb . Make sure float height AND float drop are set right ! If the float drop is not as much as it should be . The carb cant replenish the fuel fast enough . So ya cut the throttle in half and it comes back around . If the float height is to low . It cant fill the accelerator pump well all the way . And results in a partial squirt with the accelerator pump . So now its falling flat n nose divin fr a few seconds cause leaned way way out ! If changin holes on pump arm . Go to mid hole fr sure ! If that dont help . Double check timing and for vaccum leaks . Still surges get n that carb , check it all out . Ther really basic and easy to work on . Also if the carbs used . Check jets n primary metering needles . If someone got carried away changin jet sizes itll act weird . Thers a cpl other edelbrock vids on my channel . Check em out for more input ! Thanx for channel support brother ! Ya still have issues let me know ! Glad to help out . Thats what my channels all about ! Be safe my friend !
Check for vaccum leaks ! Make sure float level and float drop are right ! Ive seen the floats set wrong new outta the box . If you get to far outta calibration on jets itll stumble also
@@theweldor757 it's an edelbrock 600 (few years old but new edelbrock brand rebuild kit) on a pretty stock 89 mustang 5.0 carb converted. 800ft elevation. Still running the factory jets for the edelbrock. Fuel 5.8psi. Timing 10 degrees advanced before I reconnected the vacuum advance. Weiand intake and cast iron exhaust man's with dual 2.5 pipes with glass packs. Vacuum is 20 so I put the the strongest step up springs (8s). Sorry I know that's a lot of info but I know it makes a difference
@@theweldor757 It idles good and pull mid to high range well but off idle is a horrible stumble. Usually going from a stop or sometimes coming to a stop
@@1badombre82 did it seem any better when you went to the stiffest staging spring ? Ive seen countless brand new edelbrock carbs straight outta the box with a float sank on one side adjustment wise . Also if the float level when full is set to low . It wont fill the accelerator pump well up all the way . So you get a partial squirt when you give it the gas . That can mess ya up ! We need to eliminate variables . Take the top off the carb . Varify that both floats are set right on how much they drop . And wher ther at full ! Check your accelerator pump while your ther . Make sure the rubber cup isnt rolled or damaged ! If it was me . Being a 5.0 at 800 feet . I would swap the jets front to back while i was in the carb . The primary jets on stock application are 1 jet size bigger than the secondary jets . So say depending on which carb, say the primary jets are .098 . And the secondary jets are .095 . Put the secondary jets that are one size smaller . Put them up front wher the primary jets were . Put the .098 jets in the back for the secondaries . That will lean out the carb one jet size . Use the same needles it had . Then we can eliminate all the stuff inside the carb as a variable . We know its all good ! I was running my fuel pressure regulator on my 400 sbc at 4 psi . It had plenty of gas . Also double check for vaccum leaks . Check all ports on carb that should be plugged . Make sure your break vaccum is not leaking at all coming out of carb ! I can get back to ya fairly quick !
@@1badombre82 idle circuit screws with yr set up should only be out a cpl half turns . The leaner the carb is the more youll have to turn the idle screws out CCW .
Good deal ! Thers ben like 4 ppl that have said top hole was workin . All of em but like one commented back sayin i was right after all and they found vaccum leaks and the top hole dont work ! My neighbors 427 dyno numbers were around 650 horse . It fell flat on launch on top hole . And the guy that gave the carb to him said it left the line weird on a 800 horse motor ! Top holes just to much gas fr sure ! Glad it helped ya ! Thanx fr checkin out my channel ! Be safe brother !
Hey hey great video. I have a 1406 and it ideal good. As soon as I throw it in reverse or drive it Boggs down and sometimes dies. I have rebuilt the whole thing. Adjusted it he idle but still nothing better. Any tips? I drove it and had it about Flores and it was only going like 15mph
Older vehicle ? Check your fuel pump . Make sure its putting out at least a pint of gas in 15 seconds . Off had sounds like your not getting any fuel . Or way to much ! What are we working on brother ? Engine ? Year ?
@@theweldor757 it seems like it’s completely fine when in neutral. I can rev it and make idle adjustments and such. But as soon as under load is the issue
@@busheed go to a video i did on Edelbrock staging springs . Watch how i show to see if your staging springs are working. In park running . See if ther poppin up into power mode and sucking back down . Thatll gives i idea on engine vacuum . Check for vacuum leaks . Brake booster hooked to back of carb ?
@@theweldor757 and also just thank you for doing this. Not just for me but everyone you help with your replies and your videos. I’m sure you could be doing something and you might get some smart ass people sometimes. But thanks for the helpful info.
Got a eddy 1407 runs and idles fine about 950/1000 with no load but has a stumble into the secondaries when in gear tr6060. the linkage is in the middle hole havnt tried any others or bent the linkage no choke or choke flap took it off don't need it. Stock bottom end 350 shaved .030 vortecs with .015 head gaskets pistons are .018cc dish 253/253 duration .500/.500 lift 104 lsa circle track cam jegs dual plane new hei distributor 55 thousand volt coil 38 degrees timing all in by 3gs long tubes full 3 inch exhaust 2.5 tailpipes after axle has 4.10s going to change positions to see what happens
Have you changed jets ? Gotta get in the carb and make sure float levels and drops are good . Just helped a guy , one float was sank and the other side correct . Id swap jets . Should be .113 primaries n .107 secondaries new . Get some .110 jet size for primaries . Then put the .113 jets in the secondaries . I was messin with a 1407 last fall . Some dropped 4 jets sizes on primaries . Went back up 3 jet sizes n it was way happier . If you more than 2 jet sizes difference . You need to change needles too ! Be safe brother ! Hollar if you still need help !
This fixed my problem I bought a 3 gen Camaro carb swapped It would drive good coasting but as soon as I came to a stop idled and went back to driving it’ll bog down , I would turn it off and the. Start up and then it’ll run again until I would come to a complete swap I changed the gas tank , fuel pump , fuel filter and rebuilt the carburetor I had 5.5 psi of fuel and it’ll still do it until I moved the plunger linkage 1 hole down🤣
May the swartz be with you always brother ! I know if you get to far out calibration wise itll stumble also . Ive sure helped alot a ppl by just goin yo thst middle hole . Gimmie some feed back please ! Make sure you dont have any vaccum leaks !
I'm only commenting because I have first hand experience with this. I had a 454 with sqaure port heads and the basics. It used to light the tires up on the street all day long, I was running 275/60s mickey thompson indy profile ss tires, I know they aren't the best but w/e. Ok so the first time I ran it at a prepped track, after doing a good 3 or 4 sec burnout. it hooked more than usual and it fell on its faced sounded like it turned off for about 3 seconds and then it blew some smoke out , cleared out and hauled but. my more experienced friend called it, he said move the accel pump one notch smaller. it was on the shortest(biggest squirt) and we put it in the middle and bam it worked a hell of a lot better still only ran like a 13.90 but thats besided the point. it was a 750 though but same principal. I guess my comment really doesn't add anything of value except the fact that I know what you mean lol .
Great story brother ! Thanx ! When i tried the upper hole my motor was running perfect . Fresh 350 power pak heads . Ran great . Tried that upper hole one day fr grins . Fell on its face ! Bad ! Went maybe 500 feet turned around went back to the shop . Put it back in the middle hole . Ran great again ! Looks like this video helped a lot a ppl ! Thats why i did it Be safe my friend !
@@theweldor757 I eventually put a holley 800 double pumper and I liked it better its more tuneable. for example it has different cams to actuate the accel pump and you have a set screw to make sure it starts squirting as soon as you touch it. either way I now have a stock 350 and im about to put a edelbrock 600 on it and im just looking at videos on tuning them even though I already sort of know how but i still have some learning to do and prolly always will. anyway i think this is a pretty good video , i already knew about this though lol. but really that day if my buddy didn't tell me that I wouldn't of knew why.
@@davidcraft4909 i could bore ya fr months about how many holleys ive throwin away and put a q jet or edelbrock on for some one ! My old neighbor was good example . Like a 66 , maybe 65 mustang . Had a 292 in it 4 speed . Local garage talked him in to a holley . Ran horrible ! Fall on its face as soon as ya gave it any pedal at all . So he took it to a performance shop . They told him you bought the wrong holley . Ok , he buys another holley . Same shit . That was when i got involved . Told him i got a spare edelbrock if you want ta try it ? He wanted me ta work on his holley . Told him i wont touch that holley . But i do know a guy whos worked on holley carbs all his life . So i sent him up that guy . Few days later i see him n ask howd that work out for ya ? He said i bought the wrong holley . So my neighbor bought a 3rd holley . Still ran like asss . Even side steppin the clutch it would stall . Fall on its face and then slowly recoup . So i told him again . I got a spare edelbrock if you want to try it ! Im sick a this shit he says . I got a grand into 3 holleys now ! Took 20 mins . Had it hooked up good enough for a test drive . That little 292 laid down a good 20 , 30 foot patch a rubber , both tires ! I hit 128 in third gear then backed her down ! Guy was fillin his tank every 3 days with the holleys . He drove 2 weeks on one tank with edelbrock ! Guy called me Mr Edelbrock fr the next 2 summers lol . Ive done that 100 plus times for other ppl through 40 years ! Good times ! Be safe !
Check fr vaccum leaks . And if the floats are set to low, gas doesnt fill the accelerator pump well All the way resilting in a half squirt from gas pedal
@@stuka3213 if it sat dry that long it might of rolled the rubber cup on the accelerator pump when ya went to refire it ! Id pull the top plate . Take a quick look at the accelerator pump . Make sure you dont have a needle stuck in the seat ! Ive had the pump cup roll on me before ! Was just watching a video on china parts fr edelbrock . They sell a accelerator pump fr the edelbrock carb thats junk . Its shorter and has real cheesey rubber on it !
my 86 ss monte carlo is sitting in the middle hole and when engine is hot and you drop the hammer on the throttle,it chokes out for a few seconds before comes out of it. I dropped it to the bottom hole... gonna see what happens when rain stops. Hopefully works out. Thanks for sharing.
Make sure you float levels are good to ! If the float level is to low . It wont fill the accelerator pump well all the way . Resulting in a partial squirt off line ! Double check for vacuum leaks to brother !
@@felkerforcongress I have a Monte as well, and have been fighting a launch bog for months! I'll try a spacer. Ill try anything at this point! Thanks for the reply!!
@@zambino8763 welcome...hopefully that helps you. I can also now without pressing on gas 5 times just reach inside window grab my key and turn ignition over and it starts right up every time after it's been warmed up. Before when hot it would take me pumping the gas just to get it started. I put my accelerator pump back in middle where originally was after installing 3/4" wooden eldebrock spacer (bought off Amazon $38) and couldn't believe that's what fixed it, and runs like it's git more HP.
Tried my brand new 650 in all three holes and still have a flat spot. Tried step up springs tried fattening the air mixture and leaning. Can’t get rid of it
Go back to the middle hole on pump arm . Go back to yr 5 hg (orange) spring the ones that came with it . That way were not creating another problem while looking for a problem ! Check for vaccum leaks . Carb ports are plugged . Check the brake port on the back . Make sure its tight and not suckin air . Once your sure thers no vaccum leaks . Double check your timing . If its still havin a flat spot . Pull the top plate off the carb . Easier to just pull the carb . Then pull the top plate . Check the float levels ! Make sure ther not set to low . If ther set to low it wont fill up the accelerator pump hole all the way . Resulting in a partial squirt when you give it the gas . Ive seen the floats totally out of whack brand new out of the box ! Just start eliminating stuff one at a time . We know the middle hole is good ! We know the 5hg springs are good . Check for vaccum leaks before you pull the carb ! Just cause its new dont mean shit any more ! Just helped someone with a 650 . Someone put really fat jets in it . Stock jet was .100 . They put a .104 jet in it . Had a stumble off line . Put the stock .100 back in . Helped some . Went to a .098 . Helped a little more . Went to a .095 . Off line stumble went away ! Runs great now ! Check all that stuff . If your still havin issues hit me again ! If you pull the top plate off carb . Check jets . Make sure ther whats supposed to have come with that carb . Secondary jets are one size smaller than primaries . Take the secondary jets and swap em with the primary jets . That will lean the primaries one stage . What motor are we working on ?
@@theweldor757 it’s 358ci sbc on airboat. We lock timing out on those so it’s set at 32*. I sprayed carb cleaner all around base and vac ports. Only one I’m using is the pcv port on the front.
@@Bradofmaccly 8 hg is instantly gonna stage power mode brother . Try the blue spring just because thers not normal load being a boat ! Gonna have to check floats . Id swap jets front ta back also . Try the weakest springs ! Ive tryed the stiffedt springs before . And was always n power mode . Go the other way n see what happens !
@@theweldor757 put squirted arm back in center hole and blue springs in and still i think it will shut off if I go from idle to wide open instantly. It stalls bad
Yes ! If your on the top hole on accelerator arm it strokes the accelerator pump so much it can give it a stumble . Just falls flat on its face . About the time you think its gonna die itll come around some ! Are you working on a brand new carb , or used ? Double check for vacuum leaks also . I did a video on Edelbrock staging springs . Watch that . Itll help you trouble shoot . Itll tell you if the carb is staging from cruise to power mode like it should . Im walking a job . But i got the phone with me if you need !
Thank you and yes working on a new carb and yup it was in the top hole. 😂 just my luck went to fire old blue up and nothing. Why you may ask well the brand new fuel pump stop working so now I have to wait until this weekend for it to show up. Can’t wait to see if this works lol
@@battlehusky5812 sounds like my kind a luck ! I called Edelbrock a year or so ago . They assured me they DONT ship them in the top hole . 🙄 If you're doing a electric fuel pump . 4, 5 psi on a fuel regulator should be perfect !
I find it odd that you had this issue! I’m running an edelbrock 500 AVS on my mild 318. I bought it new,it was in the middle hole but we found on the dyno that it wasn’t enough fuel on initial take off so put the pump onto the top hole,still not enough so drilled out the squirter a from 28 shot to eventually we got to 36 shot. Much better like this.
The accelerator pump diameter must be differnt from 500 cfm to 600 to 750 . Ill have to check that out . Top hole drowns my neighbors 650 hp 427 . But were mile high also . My motor ran great ! 350 sbc . Rv cam . Power pak heads . I tried the top hole and drowned my motor bad . Put it back in the middle hole . Rip mode again !
JUST FYI, THE CARTERS ARE MADE OUT OF A BETTER GRADE OF ALUMINUM THAT DOESN'T POLISH WORTH A CRAP. THE EDELBROCK IS MADE OUT OF AN ALUMINUM THAT POLISHES UP AWESOME BUT, MAKES IT BOIL THE GAS OUT OF THE CARB IN A CLOSED HOOD SITUATION USING A THICK HOLLEY GASKET OR PHONOLIC SPACE WITH HELP WITH THIS.
Your right for sure ! Gotta run that phenolic Spacer for sure ! Thats part a why i like q jets . Single bowl . Middle a the carb . Way less heat affect on fuel . Thanx for the contribution !
off idle stumble in cam up motor is very common with these, middle hole bottom hole all the same, you lift off at the lights and it nose dives, they have a lean idle circuit and pump delay sloppy pump linkage, man i am at the end of those carbs, holley all the way if you want good drivability and mannerism on the street. funny how this condition does not exist on older carters from the late 60's early 70's. fatter idle circuit i guess idle down leg does not empty before the pump starts to squirt.
I've never had a issue with Edelbrock carbs . They leave the line hard when there set right ! Kinda part a what put Carter on the map in the 60s . I agree . I don't remember this issue with Carter carbs . I'm 60 . Seen a lot a Carter's back in the day . I've throwin around 30 holleys in the trash through the years . Run one day and not the next has Ben my experience with holleys . We were just talking about holleys last night . My old neighbor had like a 67 mustang . 289 with the Ford 4 barrel heads . Always trying ta get it running right . Hit him up see what was going on . Local garage talked him into a Holley . Ran horrrrible . Soon as ya gave it any gas it would fall on its face bad ! 4 speed . So he had went to a different garage . They told him you bought the wrong Holley . Shit ! He buys what they say he needs for it . Same problem . You couldn't even side step the clutch with motor half reved . Just fall on its face . I told him I got a extra Edelbrock if ya want ! No I gotta figure this out . I won't work on it I told him . I know one guy thats ran these all his life , has a wrench shop 10 miles down the road . Send him over there . See him a few days later . How'd that work out ? It didn't he says . Same shit . My guy told him you bought the wrong Holley . So the poor guys got 3 holleys now . No of them run . Told him again , I got a Edelbrock if ya wanna try it ? Ok , nothin ta loose now ! Took about 20 , 30 mins . Had him hooked up . Go for a test drive ! You drive he says . Ok . I lived off a highway . Seemed way happier ! Side stepped the clutch . Ol girl layed down a nice 25 , 30 foot patch a rubber ! Got a posi at ? Guess so he says ! It's never ran like this he says . Hit a back road . That dam car hit 128 mph on the dash , n 3rd gear ! He was burning a tank a gas every 2 days going to work and back with the Holley . He drove 2 weeks on a tank with the Edelbrock and layed rubber doin it ! Guy called me Mr Edelbrock for the next 2 years ! I've literally throwin around 30 holleys in the trash since late 70s ! Most my buddies are Ford Holley guys . They won't race me any more . My q jet spanks em every time . And I get 4 ,5 more miles to the gallon than they get . Thank for checking out my channel brother ! I love as much feed back and in put I can get !
@@theweldor757 well there you have it lol, for me and years of racing, holley rules it's just that simple. never had any tuning issues that could not be fixed with a holley,4 corner idle removable air bleeds, they work great and tune well.
I have two edelbrock carbs on a 350 sbc with a tunnel ram. Both are using "your top hole" Engine runs great. These carbs are awesome. I believe you have other issues. Not the excelerator pump. Maybe too much carb for your engine. Maybe timming, maybe jetting in carb. Weak spark.
My motor ran 10 point on the middle hole . All i did was put it on the top hole . And it sucked ! Went back put it back in the middle hole . Ran 10 point again ! 350 with power pak heads and a rv cam . I tried the top hole WITH the motor already runnin great ! Top hole shut it down ! Only ppl i know of gettin by on top hole are running 500 cfm carbs ! And a single plain intake we ll respond a lot differnt than a dual plain . The last 2 guys that said what yr sayin . Top hole runs good . Found massive air leaks . Fixed em . And then commented back : Dude you were so fuckin right on the air leak ! My neighbors car dynos at 650 horse . Left the line funny . All i did was put his linkage back in the middle hole . Guys says its never ran that good in the 20 years hes had the car ! That carb came off like a 850 horse big block . Left the line funny . Guy gave it to my neighbor . Who was gonna pitch it . Till i seen it was in the top hole . 67 RS/SS 427 . 6 speed tranny . Cant get out of 1st n 2nd fast enough now ! So i personally know from experience that at least up to 700 horse . The top hole to much gas ! I stand my ground ! Look at all the comments . Thanx man ! Bingo ! Thanx body . All these ppl went back to the middle hole and it fixed ther problem ! What do i know ? Ive only worked on em fr close ta 40 years now . Be safe !
My experience has been similar. I'm using a single carb, but on a 455 olds. "Top hole" wasn't enough fuel off idle in my case. I guess it all depends on the application!
@@badgerbait8351 my neighbors 427 dynos at 650 horse . Top hole was 2 much fuel . It came off a 800 horse motor . That guy gave the carb to my neighbor cause he thought it left the line not right . So i know like up ta 7 , 800 horse , top holes to much . Thers ben several ppl comment sayin ther usin the top hole . But all of but like one found serious vaccum leaks then commented back the top holes to much now . One guy was pretty funny . He emailed back a week later . Dude you were so fuckin right about a vaccum leak . Now that the vaccum leaks gone i had ta move to the middle hole ! I like q jets best ! Best stock torque numbers came off a 455 with a q jet . Stock like 71 , dyno was 510 foot pounds a torque ! Be safe brother !
@@theweldor757 Thanks! As soon as it warms up here I'm going to play with this more. BTW, I love q-jets! Just wish I was more comfortable with their tuning!
@@badgerbait8351 i did several videos on q jets on my channel . How ta do secondary well plugs . Float advice . Filter advice ! I like the bottom end on the edelbrocks ! But when i floor it im goin fuck , whers the top end ! Them spreadbores pull like a fuckin freight train ! I get 15 miles to the gallon with 35/12.50 tires . And spank my holley buddys when we race ! Ben runnin q jets fr 40 years now ! I remember racin a guy with a .030 over 390, melling cam , holley . I had a stock 307 i put a 327 intake on so i could have a four barrel . N headers . All stock . Single left hand turn . My buddys in front . We rolled the corner . I was a car length behind around the corner . I jumped into the merging lane from a car behind . Popped that spreadbore ! Went on by and put 2 car lengths on him ! He was pissed ! FUCK ! I cant fuckin believe that ! SHIT ! FUCK ! Ya got out front and i couldnt chase ya back down ! FFFUCK ! I was laughin my ass off ! Another buddy had a fresh ford 400 . RV cam headers , boat anchor holley . Im n a 79 blazer with 200,000 miles on a stock 350 . Q jet n headers . 400 was in a 79 ford short bed . Even my buddy agreed i got him by at least 12 truck lengths ! Ill take a q jet over any thing every time ! Be safe brother ! Have safe Christmas 🇺🇸🇺🇸🇺🇸
I've got a Performer 750 on a 454, mounted in the top hole, with no issues like this "flat spot" thing. the only thing i struggle with is getting it over 4000rpm (assuming my rpm gauge is working correctly). Gonna send it to an ingition timing adjustment, and then get someone that realy knows these carbs to take a look at the jet, rods and squirts combination. Allso.. saying the top hole will not work guaranteed is kinda "false advertisment". It is made to work for certain scenarios. It says in the manual that the bottom is for smoother accelerations and less fuel usage. Top hole is for street rod/race. But if your jets, rods and squirts are too big or too small, then ther's your problem. The problem is just noticeable different when using the top hole. If it doesnt work in the top hole, but suddenly works perfectly in the middle, then something smells fishy, if you cat my drift. Then something should still be wrong, its just not as noticeable. That bracket with the 3 holes are not doing anything other than regulating how fast and how agressive the throttle respons is (or Should be), it has nothing to do with the potential amounts of fuel going into the engine!?
Those 3 holes on the pump arm controll how much gas the accelerator pump gives . The 427 this guy has is hittin around 650 hp on the dyno . Edelbrock says they do not ship on top hole ! But ive found them on the top hole brand new outta the box . So i definetly know from personal expiereince That stock 350 up to 650 horse big block . The top hole strokes to much gas on launch . Was ther , drove em ! Before /after ! But your right i should not of worded it how i did ! Thers quite a few ppl that chimed in Thanx in the coments . Looks like it solved the problem fr a lot of ppl . Seems ta me any how a guy would half ta be really really lean on jet / needle combo to off set the the extra fuel . Or , have a low float setting to wher you only get a half squirt any how . Or a vaccum leak .
The guy with the 650 horse motor got the carb fr free from a guy that had like a 800 horse motor the carb was on . He didnt like the way it ran so he gave it to my neighbor . Whi is real sharp portable mechanic guy . I couldnt tell so much being a passenger . 67 camaro . 6 speed tri mec . But he said something when ha took me fr a ride that he felt a stumble . So i put it on the middle hole from the top hole . Stumble gone . Cant get outt 1st n 2nd gear fast enough now !
@@theweldor757 it’s brand new I’m not sure which port to hook up my vacuum advance to for sure. I’ve got it hooked to the driver side one. It only does it when I drive it. Not when I rev it parked.
@@CoyoteCarChannel make sure your timing is right ! I plug the vaccum advance off . Then i can run more intial timing fr stronger bottom end ! Which carb number ? On a small block ?
No , but fr 90 percent of us its right ! Even my neighbors 650 horse 427 was drowing off the line in the top hole . And the guy that gave him the carb had it on like a 800 horse motor . Thats why he gave the carb to my neighbor . Cause he didnt like the way it left the line ! Runs like a raped ape in the middle hole on that 427 ! Cant get outta first n second gear fast enough now ! Only person ive seen get away with top hole was on a 500 cfm carb . The 2 other ppl ive talked to that were tryin ta run top hole had leaned ther stuff way way out to off set the massive squirt from top hole . They had all kinds a issues goin on being that lean
@@theweldor757 yeah that’s crazy, personally I wouldn’t even use an edelbrock on a high performance motor. I’d use a Holley for that. I’ve got an edelbrock on a Chevy 350 in a daily driver square body and to be honest I’ve played with all three positions and have never noticed a real major diff in any three holes but that’s just my experience 👍🏼
@@doomcrewoutdoors1613 thanx fr input fr sure brother ! Ive throwin like 30 holleys in the trash through the years . Race all night long and tamorrow wont even start was my experience on holleys . My whole crown is ford / holley nuts . My Q jet on a 400 sbc eats ther lunch like clock work ! They all run back to ther holley guy . Whats with this guy and his f n Q jets 🤣😂🤣 One of em 390 , .030 over . Melling race cam , headers n a holley . Im n a stock 307 that i put a 327 intake on so i could have a spreadbore carb n headers . Ate that 390s lunch . I came from a car length behind and then put 2 , 3 car lengths on him . My crowds holley mechanic is who it was . Dumped that spreadbore n just shot past him . Man he was pissed ! Sh!t ! Fu#k ! I cant f n believe that ! Son of a , , ,lmao ! My neighbor in the 90s 65 ? Mustang . 289 . One a the garages in town talked him n to a holley . Ran like ass ! Guy barley made it home . So he goes to another garage . O you bought the wrong holley ! So he buys another one . Ran even worse ! So he hits me up . Hey i see ya workin on a lot a cars fr ppl , can ya help me out . Sorry brother , wont work on a holley . Got a edelbrock you can try ! No no i gotta figure this out . So i sent him up to my holley buddy . My guy tells him : so sorry , you bought the wrong holley ! My neighbor , goes out and buys a third holley . Seen him a cpl days later . Howd that work out for ya ? It didnt . Cars barely runnin . Soon as you gave it any gas at all , wooof fall on its face . I still got a edelbrock you can try . Sure he says nothin to loose at this point . Took maybe 20 mins . Fired that 289 up . And right out the gate its WAY happier . Idles good ! Throttled it a cpl times , no wooof , no fall on its face . Test drive , you drive he says ! Ok . I jump out on the highway and nash the pedal . 4 speed manual . Were side ways on the highway ! Told him shit you got a posi ! Geuss so cars never ran like this before ! Dam little 289 hit 128 mph in 3rd gear ! He suckin a tank a gas every 2 , 3 days with the holley ! Drove 2 weeks on a tank with a edelbrock ! And laid rubber doin it ! Guy called me Mr Edelbrock fr the next 2 years lol ! My neighbor with the 427 . Tried 2 holleys and a holley sniper . Says the car has never ran as good as it does now with a edelbrock ! My buddies get 10 mpg . I get 15 and eat ther lunch ta boot ! Just a quick lesson i learned in life ! Got a filing cabinet full a : pulled your holley and went back to q jet that does circles around the holley they had ! Literally ive throwin over 30 holleys in the trash ! Ive yet in 40 years ta have 1 person want ther holley back on ! Half of em said the same thing . Want yr holkey back on ? Screw you dude ! You can throw that thing out the window ! Lmao
@@theweldor757 that’s a cool story but I’ve been in and around competitive drag racing for years and I’ve used and tuned a Holley 4150 the entire time and have never had any issues, further more go to the drag strip and count the number of edelbrocks you see on competitive cars you won’t find many if any
@@doomcrewoutdoors1613 were mile high . Holley is just to much irregularity here at 6000 feet . The guy with 427 is well knowin n our area . Hes a portable mechanic . Sharp kid ! He liked the way edelbrock ran so much he pulled the holley on his 32 coup and went edelbrock also . And then that sat the standard here in our community . All kinds a ppl that were strugglin followed suit . All kinds a duel carb edelbrock big blocks runnin around now . Thers one guy in a 69 camaro . Still has a holley around here . He has ta pull over every cpl blocks cause his rides floodin so bad it wont keep runnin ! Just drowning the motor ! The holley guy i grew up with has ran holley fr 50 years now . Couldnt make that mustang run . He races on the weekend . Builds fords fr other ppl . The last race motor he built fr a guy with holley was a joke . Strugglin hard so they threw a air/fuel set up in it . They had to drop the jet size by 5 numbers to get the air/fuel to dial in . It was so rich it d burn your eyes standin around it . 2 other buddies just did a 400 sbc . Brand new holley outta the box ! This guy builds blower motors n ships em around . I step in . Whers your holley ! After spending all weekend trying to get the holley to idle . They gave up snd put a edelbrock on so they could drive the car and break the motor in ! They bet each other that d be the first thing id notice . Whers yr holley ? And then i come along with a 400 sbc n a Q jet and spank every one lmao ! My 400 sbc calced 16.6 mpg . While they get 10 mpg . And i beat em when we race ! Great yammerin with ya ! Love hearin what others are doin brother !
Yah i called edelbrock and talked to them . They assured me they DID NOT ship them in the top hole . I told em ive seen several brand new outta the box carbs in the top hole . The guy said no no no . We dont ship em on the hole 🙄 Thats what i learned that on was a 750 . Almost kill my motor on the top hole . Flood it bad . Went back to the middle hole . Ran excellent again
there is no such thing as " one size fits all".. mine runs best in the top hole (360 in heavy truck)..you have to experiment, see what works best for your application.. thats why it has 3 holes in the first place.. for adjustability..
Definetly ther for adjustability ! My neighbors 427 dynoed at 650 hp . It was to much gas . Fell on its face on the top hole . He was givin the carb off a 800 horse motor . That guy hated the way it left the line so he gave it to my neighbor . Most every person on this thats said what you say . Hit me back later n said yr right i found a vacum leak ! I tried it on my 390 . 30 over 268 comp cam . Top hole killed it ! Fell on its face . Put it back in middle . Ran like a raped ape . That was in a 71 f350 with 2 welders on it . Truck weighed 12,400 pounds . I got 13.5 miles ta gallon ta boot ! With my Q jets i pull 15 , 16 miles to the gallon ! And kill my holley buddys every time we race ! Killed roys 400 fresh big block . 30 over rv cam holley . He agreed i got him by 12 truck lengths . I was in a blazer with a stock 350 with 200,000 miles on it . Ill take a q jet over any thing . Be safe ! Thanx fr yr in put !
I'll take a q jet over any thing . Edelbrock next . I've throwin some where around 40 holleys in the trash for other ppl . Put their q jet back on for em or Edelbrock . Some of the older Carter's were bad ass carbs
If it was me id change out the power valve . Just googled it . Thats how a holley stages cruise mode to power mode . I no if a holley back fires it takes out the power valve
Holleys are always fooding it seems like . Ive literally throwin like 30 plus holleys in the trash . Run taday and not tomorrow . Best advice i can give ya buddy . Check the power valve . Check for a vacuum leak . I just am not that familiar with the holley stuff !
I called edelbrock before i made this video . They assured me : We dont ship them in the top hole the tech guy said ! I swear a holley guys workin under cover at edelbrock on the assembly line !
@@chrisnielsen5467 makes me question some a these other ppl . One guys a 318 sayin the top holes not enough fuel . Need more fuel ! Hmmm Dont add up . Glad this helped out brother !
Every situation definitely is different . Did you try the middle hole ? A cpl a these guys have close to 800 horse power . Top hole was to much gas ! Guy across the street has a 650 horse 427 . Top hole was to much gas on launch
@@mikerovere6896 i no were mile high here . 6000 foot . Its just to much gas up here for the average guy ! I was supprised when my neighbors 650 hp 427 choked on the top hole ! That carb came off a 800 hp big block . The guy that gave it up said it left the line wierd ! 6000 foot a altitude changes the hole game here
Well shit...I need to withdraw my comment. That top hole is too much gas in the summer. The extra fuel did fine in the cold winter. Is the bottom hole just a leaner option? Thanks for getting back with me
Your right . But it doesnt change the geometry of whats happening ! Through one together for the video . Ive actually ran a cpl like that . Doesnt change anything . Good eye ! Your the second out of how many views ?
I got a flat spot no matter what hole I'm in. New out the box. I'm about done dumping money into old shit. Imma just start buying new vehicles at least I don't have problems
What are we working on brother ? What motor ? What carb ? Did you check the floats n stuff in side ? Ive seen them brand new outta the box with floats messed up . If your float doesnt drop the right amout the bowl cant fill with gas . If ther set to low the well for the accelerator pump cant fill up with gas ! Unfortanetly just cause its new means absolutley nothing ! As far as getting something new . I just made that mistake last year . Sold my 1990 k3500 dually after 4 years a service in the field . Upgraded to a 04 duramax . Trucks ben in the shop 5 times now in 15 months ive had it . Last month was 6000 for injectors . Last april i was on gig 1300 miles from home . Flex plate gernaded . Left me n the help stuck in a motel fr 5 days . Last week the head lights wouldnt shut off . This morning the tail gate latch busted . In the last 15 months the truck has cost me almost 10,000 in work alone . Close to 20,000 with missed work . Should a kept my 1990 . Broke down once in the 100,000 miles id put on it . This 04 ive put on 30,000 miles and its cost me 10,000 in work done to it !
@@theweldor757 82 camaro with a 406 sbc stock heads edelbrock performer intake. 1 inch carb spacer. I've thrown everything but the kitchen sink at this carb. Float bowl height, correct fuel pressure, the springs for the idle needle things cant think of the name right now. No matter what i do i get a stumble. It does it less on the top hole but still does it.
@@whodatisful what cfm carb ? Gimmie a carb number . So your 30 over . Whats it have for a cam ? Whats your intial timing ? See if i can help ya figure something out !
@@theweldor757 750 holley street demon and unfortunately I have no idea what cam and neither does the previous owner. Motor is happy around 32- 35 initial. Also only pulls are 10 or 12 on the vacuum guage at idle. The idle seems to be happy around 1000 rpm. Everything is tuned with car in gear
@@whodatisful i cant help ya on a holley brother . I gave up on those in the 80s . I could bore you all night with stories helpin ppl out by taking ther holley off and putting a edelbrock on . Problem solved ! Ive throwin around 30 holley carbs in the trash . One example . An old neighbor 20 years ago . Had a like 65, 66 mustang . 289. 4 barrel heads . 4 speed . Car was at a local garage . Tune up dont run right . Garage talked him to a holley . Didnt run any better . Takes it to another garage . They told him you bought the wrong holley ! Buy this one . He buys that one . Left the garage with the car barely runnin . I didnt know him yet . But hes out side workin on it . Sounds horrible . I introduced my self . He told me the story . Wanted ta know if id work on it . Nope sorry . I only no one guy that has luck with those . Send him up to the mechanic i know . He tells him the same shit . O you bought the wrong holley . So my neighbor buys a third holley . I see him a cpl days later . Hey howd that work out for ya ? It didnt he says . Same problem . You drive it he says . Went around the block . Tital disaster ! As soon as you hit the pedal the motor would flood out . Couldnt even rev it up and side step the clutch . Instant choke . So i told him i had a edelbrock if he wanted to try it . Nothin ta loose he says . Took about 20 mins . Git a 600 edelbrock on it now . Fire it up . Seems way way happier ! Test drive . That little 289 laid down about a 25 foot patch a rubber jumpin on the highway . I told him ya got posi ay ? Geuss so lol ! Cars never ran like this ! Little car hit 128 mph . In third gear ! Guy called me Mr Edelbrock for the next 2 years till he moved . Guy was goin through a tank a gas every 2 days goin to work with that holley . He drove almost 2 weeks on a tank with a edelbrock ! And laid rubber doin it ! Ive done that 50 flippin times through years for other ppl . Threw ther holley in the trash put the original q jet back on or a edelbrock . I havnt worked on holley for 30 plus years ! Sorry brother ! See if someone you know has a edelbrock you could try !
I see what your saying brother . The first D is silent ! Lol . I still struggle ta not say Carter . It was Carter the first 20 years I was around them ! I would of never noticed it if you didn't point it out ! Be safe !
Thats what happens when you have a speach inpedament . Dogged me all through elementary about it . Ds n Ts is what it is . Its ther , just hard ta hear it
If you adjust your jets lean enough for that much gas on the excelerator pump at launch your gonna be way lean after you give it the gas on launch . After the launch , vacuum is pulling fuel through the Venturi the accelrator doesnt give it any more gas . This last guy we left the jets stock for a 750 cfm . It was on a 427 BBC that produced 650 hp on the dyno . Top hole was to much fuel ! It still ran , but not right . So what your sayin dont make sense unless thers a vacuum leak off setting the extra fuel its gettin ! Hey , as long as its running right ?
@@JM-xi8uz your the FIRST person in over 30 years that ive ever herd of running the top hole and NOT having a issue ! The 427 guy got that 750 Edelbrock for free . It came off if i remember right a motor that had like over 800 hp . Guy was racing with it at the track . Didnt like the way it ran so he gave it away . Edelbrock ASSURED me they do not ship on the top hole . Which i know isnt true cause ive seen them brand new outta the box twice now in the top hole ! I know if the floats are set to low the gas cant properly fill the accelerator pump well . Maybe your on the top hole . But only getting a half squirt ? When i tried it it was on a 350 sbc . 305 heads . RV cam . Headers . It took like 3 seconds plus to recoup from that much gas ! Fell on its face BAD ! I changed it back to the middle hole immeadently ! My flat spot went away ! Just my opinion . But something dont seem right brother ! Be safe !
It is . Its a parts carb some one trashed in side . Didnt notice when i made the video . But yr right ! Dont think the geometry changes . But you are right ! Dont remember who gave me that one back in like 93 . I ran it fr a week end . Went ta jet it . The guy epoxied the jets in . Ther totally stripped out . Pulled it . Its just ben a parts carb since !
Thanka for tips, from your experience! But please, PLEASE, do something. Stop saying El debrock. The word, the brand, the family name is Edelbrock. It sounds as dumb as the people that say Wall Mark. It's Wal-Mart. Say it with me EDEL BROCK, EDEL BROCK. There, fixed it for you.
If only it was that easy ! I had a speech impediment growing up . Had to go to speech therapy for D's and the letter T's . They still dont come out my pie hole very well . I still remember getting drilled fr the letter T in the 3rd grade . I still remember that lady tellin me Its not a elephan . Its a elephanT ! It is what it is ! Was up till 1 am dialin in a 750 carter competition series on the 383 in that orange challenger back a few videos . DAM that car is leavin the line hard now !
After 2 months of adjusting this is the best advice ever. Fixed now I can sleep at night
Glad that helped ya brother ! Be Safe !
i got 1990 k5 blazer 5.7 had it rebuild with a few up grades everything is pretty mush stock i up graded the cam to a howard cam rattler lift 225/230 duration 0.50/227/235 centerline 03 i still have the factory swirl port heads i got headers 3' pipes all the way back i up graded my torque converter to 2000 to 2400 stall and 4:10 gears i just put my engine in about a week ago it was a tbi so i converted it to carb...im having problem trying to get it to run right i put a brandnew edelbrock carb 1406 on it..i got 12-887 holley regulator set it to 6 psi i got it to run starts up good but its backfiring and popping out my exhaust ..i have a vacuum port on my regulator but did not hook it up dont no if thats the problem or not..or is the carb to small for my set up...you can smell the burning and the raw gas in park when u accelerate and give it more gas it sound good but at idling its popping and backfiring like someome popping fire crackers..tell me what you think
Make sure yr timings right ! Double check fr vaccum leaks ! New carb ?
had to move mine to the lower hole, prior i would have hesitation every-time i stomp on the gas
I have an Edelbrock 350 (sbc) supercharged with two 600 Edelbrock carbs, both appear to be letting fuel past the accelerator pump when under hard acceleration, any ideas?? currently in the top hole position
Did you try the middle hole ? I would if you havnt ! Other wise not sure what to say . Why do you think fuel is getting around the plunger ?
I'm running a Blueprint 350 with a 1406 (600CFM). I tried both the top and middle holes while I was first tuning the engine. The top hole definitely delivers a bigger squirt, which made my engine bog for a split second, nothing too horrible. I went to the middle hole and the squirt felt more appropriate. I guess I can see how the top hole would deliver too much initial squirt in a bigger carb (750) that is already providing enough flow. Setting the floats properly is also critical as you mention. Good video.
On a 750 cfm it's super bad on that top hole . Just drowns the motor ! I know several ppl running blue print engines . Seems like a good set up ! Be e safe !
SAme carb, but my 350 has been backfiring through the front bores and I ended up changing the rod to the bottom hole and it has only done it one time since. Am happy with the current setup.
I have been fighting this the whole time thanks for your video.
Anytime buddy . Easy thing ta swap if your fightin something else . And then ya got more problems and dont know it yet ! Glad it helped brother ! Be safe ! I know mechanics that have over looked it and got ther ass kicked ! Lol
You were so right. Had same issue with new 750 Edelbrock and it was on top hole. Thank you for posting this video
Be safe my friend !
Same here
@@evanbennett4308 glad it helped ! Be safe brothers !
This is a great video. I’m having the same problem. 650avs on my 429 big block. Mash the throttle from a stop and it flat lines for like two seconds then runs hard. My wide band tells a different story. It goes completely lean like 19-21 which to means not enough fuel shot? If too much fuel it would flood and the wide band would indicate 10 and below but my MSD would lite it anyway. Car guys suggested a stiffer pump assembly from the bigger 750-800 series carbs edelbrock part #1470 in addition to a bigger nozzle for a faster greater volume fuel shot. What do you think? My builder suggest a Quick Fuel 750 SS-AN series and call it a day…..
If its just a mild build , and your not sea level .
Sure sounds to me like its flooding from the stab of the peddle . Takes a cpl seconds to recoup and come around ! Have you ben inside the carb yet ? Ive seen them brand new outta the box with the floats outta wack bad ! I know if you drop the float level to much . It doesnt fill up inside enough to fill the pump well . And results in a partial/half squirt ! If you havnt tried the middle hole on the pump arm give it a shot ! I had a 429 in a work truck . 262 comp cam headers ! Hauled ass ! I leaned the jets one size it ran hard ! But im also mile high brother ! Double check fr vaccum leaks ! Try the middle fr sure if you havnt already ! Check a cpl spark plugs . Are they black n wet ? Or white and dry ?
Did you figure out this bog? I'm having the same issue with a 750cfm on a 396. The wideband goes full lean. Why would it show lean of its was flooded?
@@vela07 I have since done a lot of mods to my car including twin superchargers and a 750 double pump. if you still have the endelbrock I would try the different levels of pump shot along with pulling the needles up quicker as you engine transitions from light throttle to WOT. I used to have my enrichment come in around 8” inches of vacuum which helped dramatically with the off idle stumble. I also found the Edelbrock and my dizzy vacuum advance liked the ported manifold vacuum better because it gave me a more stable idle timing then the advance would kick in as you mashed the throttle. Trial and error but make sure you get those vacuum leaks taken care of first and foremost.
@@70GalaxieMan we tried the larger pump shot nozzle and the weaker springs to make the rods open faster. I'm now thinking about going back to the original jetting and see what it does
Well,I have had my carb set on all three of the hole's your talking about,and it run's and drives on all three,and they all have a hesitation/bog down on acceleration.So what is causing that?I'm running a Buick 455 (1970)with a cam,.20 over,head's opened up to like stage 1 spec's, Edelbrock performer intake,MSD hei distributor, Edelbrock AVS2-800CFM carb..
Have you changed jets or anything ? I just did a carb last weekend . Some one changed jets . It was so fat it stumbled bad . Went back to stock calibration that the carb came with . Problem solved on this one any how !
You really need to look inside the carb even brand new ! I've seen floats sank on one side not the other brand new out of the box . If the floats are to low on Edelbrock style carbs don't fill the well up all the way for the accelerator pump if the floats are set to low . You almost have to get inside and verify some stuff is right before continuing on !
I just bought the carb,brand new,after fucking with a Holley Brawler carb for about a year,and have not done anything but change the pump adjustment setting,and fuel/air mixture screws.I am waiting for a phenolic spacer plate for heat dissipation.The guy at Edelbrock said that this carburetor was a direct fit to my intake manifold,with no spacer plate needed.I'm getting ready to set the fuel/air mixture by using a vacuum gauge hooked up to the intake.Next I guess would be to take the top off and check the float level's.Damn,you guy's waste no time helping a brother out,that was the quickest response time I've ever seen.Awesome!!Thank's!
@@scottwiegand2310 always glad ta help a brother out ! Ive seen so many problems brand new outta the box ! You just gotta get in side n make sure everything is right first . Check the the float drop and float level for full . Check your jet sizes while your ther . Pull a primary . Check numbers on jet . Pull a secondary jet fr grins . Check numbers for size . Go on line make sure those jets are what the carb should come with . All the jets should have a 120 number . Then 3 more numbers . Its the other 3 you need to pay attention to ! Itll be like 401 . Take those three numbers , minus 300 . Gives you your jet size . So a 401 . Is a jet size of 101 . If its a 398 . Minus 300 . Is a jet size of .098 . So number 98 jets . Check the needles also . Make sure ther what ther supposed to be . Stay in that middle hole on the accelerator pump !
Right on,man,I really appreciate the advice.I will definitely open her up and check thing's out,I'm at work,so it might not be today.I will be sure to post what I find when I do.Thank's again and have a good one!
I agree you are the man same thing happened to me out of the box watched this went straight to the shop checked and in the top hole ,thank you a lot
Great ! Looks like this has helped a lot of ppl !
Thanx fr checkin out my channel . Be safe brother !
I live on Vancouver Island can't wait for the weather to improve and get the 56 out and try this out
That’s interesting, everything I’ve read and researched said if you have a flat spot to wise up to this position because it gives a larger squirt of fuel. But I have to admit, it’s not helped one bit. I’m going to try going back to standard position. Ford 400 with flat head pistons and a mild cam, headers and can’t get it to run like my bronco with the same engine minus the upgrades mentioned. Any other thoughts on what to adjust if this doesn’t work?
Look at how many ppl in here posted Bam ! Fixed my flat spot ! Didn't watch any videos my self from others on flat spot on launch . But common sense would say if anything a flat spot would be rich . Thats not directed at you . Just thinking you said most other videos said to go fatter on launch . In my mind . Im thinking if you're lean on launch after squirting all that fuel in ther . Youd be having other issues after launch . Only one kid posted some smack about being on the top hole . And his stock small block runs great he said . Its all about jetting he says . Well youd have to run super lean jet wise to off set the accelerator pump squirt . My 2 cents for ya ; If its a new carb ? Go back to stock jets n needles . Stock jets fr secondaries . Put the accelerator pump mid hole ! I talked to Edelbrock . They assured me ; they don't ship them in the top hole ! But they are . And its jackin the average joe up . Its like someone from holley is working at Edelbrock and sabbatoging the carbs ! Make sure the floats are correct ! If you get the floates to low . The one side cant fill the well for the accelerator pump . And you get a partial squirt off line . That will dump you on your face also ! Go back to stock settings . Middle hole see what happens . Check for vacuum leaks ! Brake port on back of carb fr sure . In a new Edelbrock . The secondary jets are one size smaller than the primary jets . So what i do . Is swap the secondary jets to the front a the carb . Put the primary jets in the back a the carb wher secondary jets were . Now your one jet size lean on primary jets from stock . Dont change needles ! Just swap jets front ta back . And then ill plug my vacuum advance . Permanently . So i can run another 5 , 6 degrees of intial timing . Stronger bottom end ! You can tell if your lean or fat jetting wise by how many turns out your idle screws are . If yr idle screws are only out 1 ta 2 half turns and its happy . Your on the fat side . If you have to turn the idle screws out 6 , 7 half turns to make it happy . Your on the lean side ! Go Back to stock settings . Check for vacuum leaks . Check float levels . Mid hole on accelerator pump arm . Watch the Edelbrock staging spring video i did . Help ya some that way . I show you how to check your staging while the vehicle is running . Im here if you need anything brother !
What if I’m in the middle hole and still have a flat spot …
I have 2 carbs same 600 manual choke … one didn’t like to start …. And the other has a flat spot on take off and I just checked and they both are on middle hole …. (355 sbc
Check for vaccum leaks first ! That could cause both problems on each carb ! Make sure you have the right
gasket , intake to carb . Check yr brake vscvum on back of carb . Make sure its tight ! Make sure all vaccum ports are good ! On the intake also . All ports hooked up or plugged ! Check your fuel out put before the carb . Rule a thumb is one pint mininum every 15 seconds . Make sure your getting good fuel pressure ! We ll start eliminating some stuff that it could be ! All that stuff checks out hit me back . We ll check a few more things !
now i cant wait till spring too see if that fixes the nasty bog out of the hole on my big block 383
in my charger! thanks man
Any time brother! Look at all the comments . Its helped a lot of ppl ! Thanx for checkin out my channel , be safe !
Great advice. Thanks.
Be safe brother !
Is there any adjustments you suggest for my truck not starting right away? I have to keep cranking the key and give it some gas until it finally turns over
Thanks!
Crate sbc 350 with edelbrock 750
So when its warm . If you get back in and DONT give it any gas . Itll just crank and not start ?
@@weldorworx6858 once the truck is warm, I can get in and crank it like normal without pushing gas and it’ll start right up
@@justintutogi47 are your float levels right ? If you get the floats to low on Edelbrock carbs it doesn't fill the accelerator pump well all the way . So you only get a partial squirt from the accelerator pump . Also check your timing !
Incorrect Ignition timing is usually the issue if it doesn't fire up instantly.
Dam it i wasted a bunch a time before i found this ! Solved my problem ! You da man !
Ive seen this so many times its rediculous ! Edelbrock assured me they Do NOT ship like this ! What ever . Ive seen it twice now brand new outta the box ! Be safe !
Hello I have an AVS2 650cmf on my 350 sbc and when I accelerate abruptly the engine shuts down, has a new gas pump and works at 5 psi and there's no vacuum leak on the lines.
What do you recommend me to do?
Your in the middle whole on the accelerator pump arm ?
@@theweldor757 Yes, in the middle, friend.
Check yr carb to intake gasket . Make sure its not suckin air around the base a the carb some wher ! Have you checked float levels in side the carb ? Ive seen carbs brand new out of the box that had the float levels wrong . If the floats are set 2 low the accelerator pump well cant fill up far enough to give a full squirt . Itll make it fall on its face . Do you have a squarebore intake ? Or a spreadbore intake ? Some times when you put a squarebore carb ( edelbrock ) on a spreadbore intake . Itll suck air at the widest part of the intake ! Did you put a spacer between the carb and intake ?
@@theweldor757 Ah perfect then check these aspects, the intake is square bore and does not have any spacer, thank you very much for your time, I hope to solve the problem.
Did you fix your problem Alexis
Could you uploads vid of gas shot from accelerator pump nozzle in middle hole versus top hole? So we can see what to much looks like. I always thought my stumble was from too little shot of gas.
If your float level is set to low . It wont fill the accelerator pump well all the way . Resulting in a partial squirt ! I dont have a edelbrock on any thing at the moment brother !
I like Q jets over any thing else !
I have an Edelbrock 1406 on a stock 302 I use the bottom hole leans it out little more
Good input brother ! Thanx ! In my mind thats all i could figure it would be for . Had a guy who got suckerd into a holley for his 289 . Ran like chit . Next garage told him you bought the wrong holley . Buy this one ! Ran like crap . Only know one guy that works on holleys . Sent him up ther . O you bought the wrong holley ! Poor bastard bought a 3rd holley . Seen him a cpl days later . Hows yr car runnin ? 289 in a mustang . Runs like chit still . I drove it around the block . OMG . F N horrible ! 4 speed car . Wouldnt even chirp the tires side steppin the clutch . Told him look , i got a Edelbrock off my 390 . Wanna try it ? Sure nothin ta loose . Little 289 got a good 25 , 30 foot patch a rubber . Dam thing hit like 125 mph in 3rd gear . Guy called me mr Edelbrock fr the next few years lol . My son in law put the 500 cfm on a 302 in a mavrick . That seemed to run real good . Thanx for checkin out my channel and your input ! Be safe brother !
I just bought an edelbrock 750 same problem I’m actually under the hood now trying to figure it out ran across your video and looked at mine sure as shit it in the top hole! I’m going to move it and hopefully that’s it 👍
May the swartz be with you ! Have any troubles im here . Be safe !
Check fr vaccum leaks while yr ther !
Hey I have run the bottom hole on my ford 400 and the middle but bottom hole rilly gets rid of any hesitation out the gate problem with that top hole is no body buys a cam big enuf to use it Sept on a blower motor just my 2 cent
Good 2 cents worth ! Ben around a cpl motors now . 650 hp . 800 hp . Top hole was still to much . One guy said hes runnin top hole and its workin . But its on a tunnel ram .
I added a Thompson Powerplate and was able use the top hole. If you dont know what that is ill try and explain. The plate deflects the stream of fule from thre nozzle. So instead of the punp shot looking like it comes out a garden hose it fans out. Even on the middle hole i could notice a difference. Better fuel atomization is my guess. They cost about 40 and mount under the nozzle. There are videos with side by side comparison. Being honest the only reason i bought one was someone i know tryed and i drove his Camaro with and with out and it also was a noticable difference. So my fairly hot 302 woth a AVS2 650 and my buddies SBC 400 with a Performance 750 both saw improvements
Great input brother ! Ill have to check that out . Thanx !
@@theweldor757 ua-cam.com/video/2atbXqsO0ao/v-deo.htmlsi=jvJ-d6Yk6IP7Eytt
Just a quick side by side. I thought I was tripping about much of a difference it made. I had my buddy ride with me and ask if he noticed anything. He's the real deal car guy and after 3 pulls from cruising at 1200 RPM in 1st he said "your driver's side is lifting higher, you got more torque,, what'd ya do?". Like I was saying the 302 is fairly hot so any thing I can do to add more usable fuel it likes. Side note we messaged back and forth when I 1st got the AVS2 about a year ago!!!! Appreciated you then for the help so I figured if I could pay it forward why not.
@@BPattB cool video brother , thanx !
Thanks! I have the same problem with my 500 electric choke Edelbrock.
Cpl ppl have chimed in with smaller motors sayin ther using the bottom hole on pump arm and it runs great ! FYI
I have had the opposite experience. Middle hole had a stumble.....top hole perfect. 289 Comp cam GT40P heads.
Thers ben a cpl ppl out all of them that have said the top hole worked . One guy was right wher yr at engine wise . 289 ? 302 ? Had the edelbrock 1404 . One guy said he found a vacuum leak . And then had to go back to the middle hole . My neighbors beefed up 427 didn't like the top hole . But were mile high here
I'm running my avs2 on the middle hole and it still falls on its face. About to try the lower hole. Pretty frustrating.
Check fr vaccuum leaks ! Did you check your float levels ? If the float on the accelerator pump side is low it will give a half squirt ! Have you changed any thing inside the carb ?
I wont put them on straight outta the box anymore . To many problems ! First thing i do with a new carb is take it part and make sure every thing is right !
Only thing I've done inside the carb is step up to a bigger metering rod. ( Thinner) it helped a little bit. Haven't found any vacuum leaks.
I think I'm going to check the floats next thanks for the info😁
@@kevinmacshara4291 typically you cant go more than 2 sizes up or down with needle changes with out changing the jets also . What i like ta do is swap the jets front ta back . The jets in the back are one size smaller than the primary jets up front . When ya get the carb brand new . Leave the meetring needles alone . Yours were probably 71/47 if i remember right new out the box . Take and switch the jets while you check the floats . Check the rubber on the accelerator pump make sure its not rolled up while yr ther brother !
I'm a try that .....I've got a marine edelbrock 600 electric choke.....it's runs but when u try and run the boat it surges......its in the first hole as well too....thanx
Any time brother ! The top hole if yr just cruisin low rpm , steady . And romp it . Itll choke out some n then come around . But if yr just cruisin . Steady . Mid rpm , , say 2800, 3000 rpm . And DONT give it any pedal . And it starts surging . Id check fuel pressure . At least 4 psi fr single carb . 6 , 7 psi for dual carb min . And as much as i hate to say it 🙄. Brand new dont mean nothing any more . Ive seen the floats totaly outta calibration new outta the box . Ya keep havin trouble . Poke inside the carb . Make sure float height AND float drop are set right ! If the float drop is not as much as it should be . The carb cant replenish the fuel fast enough . So ya cut the throttle in half and it comes back around . If the float height is to low . It cant fill the accelerator pump well all the way . And results in a partial squirt with the accelerator pump . So now its falling flat n nose divin fr a few seconds cause leaned way way out ! If changin holes on pump arm . Go to mid hole fr sure ! If that dont help . Double check timing and for vaccum leaks . Still surges get n that carb , check it all out . Ther really basic and easy to work on . Also if the carbs used . Check jets n primary metering needles . If someone got carried away changin jet sizes itll act weird . Thers a cpl other edelbrock vids on my channel . Check em out for more input ! Thanx for channel support brother ! Ya still have issues let me know ! Glad to help out . Thats what my channels all about !
Be safe my friend !
Mine falls flat on both holes, have not tried the bottom yet, any ideas
Check for vaccum leaks ! Make sure float level and float drop are
right ! Ive seen the floats set wrong new outta the box . If you get to far outta calibration on jets itll stumble also
Mine is set on the middle hole. I tried both the upper and lower and the nasty flat spot off idle isn't going away. Think i need to jet it down a bit
Is it a new carb ? What motor are we working on ? Whats your altitude !
@@theweldor757 it's an edelbrock 600 (few years old but new edelbrock brand rebuild kit) on a pretty stock 89 mustang 5.0 carb converted. 800ft elevation. Still running the factory jets for the edelbrock. Fuel 5.8psi. Timing 10 degrees advanced before I reconnected the vacuum advance. Weiand intake and cast iron exhaust man's with dual 2.5 pipes with glass packs. Vacuum is 20 so I put the the strongest step up springs (8s). Sorry I know that's a lot of info but I know it makes a difference
@@theweldor757 It idles good and pull mid to high range well but off idle is a horrible stumble. Usually going from a stop or sometimes coming to a stop
@@1badombre82 did it seem any better when you went to the stiffest staging spring ? Ive seen countless brand new edelbrock carbs straight outta the box with a float sank on one side adjustment wise . Also if the float level when full is set to
low . It wont fill the accelerator pump well up all the way . So you get a partial squirt when you give it the gas . That can mess ya up ! We need to eliminate variables . Take the top off the carb . Varify that both floats are set right on how much they drop . And wher ther at full ! Check your accelerator pump while your ther . Make sure the rubber cup isnt rolled or damaged ! If it was me . Being a 5.0 at 800 feet . I would swap the jets front to back while i was in the carb . The primary jets on stock application are 1 jet size bigger than the secondary jets . So say depending on which carb, say the primary jets are .098 . And the secondary jets are .095 . Put the secondary jets that are one size smaller . Put them up front wher the primary jets were . Put the .098 jets in the back for the secondaries . That will lean out the carb one jet size . Use the same needles it had . Then we can eliminate all the stuff inside the carb as a variable . We know its all good !
I was running my fuel pressure regulator on my 400 sbc at 4 psi . It had plenty of gas . Also double check for vaccum leaks . Check all ports on carb that should be plugged . Make sure your break vaccum is not leaking at all coming out of carb ! I can get back to ya fairly quick !
@@1badombre82 idle circuit screws with yr set up should only be out a cpl half turns . The leaner the carb is the more youll have to turn the idle screws out CCW .
Fixed my problem . Thanks
Good deal ! Thers ben like 4 ppl that have said top hole was workin . All of em but like one commented back sayin i was right after all and they found vaccum leaks and the top hole dont work ! My neighbors 427 dyno numbers were around 650 horse . It fell flat on launch on top hole . And the guy that gave the carb to him said it left the line weird on a 800 horse motor ! Top holes just to much gas fr sure ! Glad it helped ya ! Thanx fr checkin out my channel ! Be safe brother !
Hey hey great video. I have a 1406 and it ideal good. As soon as I throw it in reverse or drive it Boggs down and sometimes dies. I have rebuilt the whole thing. Adjusted it he idle but still nothing better. Any tips? I drove it and had it about Flores and it was only going like 15mph
Older vehicle ? Check your fuel pump . Make sure its putting out at least a pint of gas in 15 seconds . Off had sounds like your not getting any fuel . Or way to much !
What are we working on brother ? Engine ? Year ?
@@theweldor757 my apologies it’s a 1987 350 in a k5 blazer I converted from tbi to carb.
@@theweldor757 it seems like it’s completely fine when in neutral. I can rev it and make idle adjustments and such. But as soon as under load is the issue
@@busheed go to a video i did on Edelbrock staging springs . Watch how i show to see if your staging springs are working. In park running . See if ther poppin up into power mode and sucking back down . Thatll gives i idea on engine vacuum . Check for vacuum leaks . Brake booster hooked to back of carb ?
@@theweldor757 and also just thank you for doing this. Not just for me but everyone you help with your replies and your videos. I’m sure you could be doing something and you might get some smart ass people sometimes. But thanks for the helpful info.
Got a eddy 1407 runs and idles fine about 950/1000 with no load but has a stumble into the secondaries when in gear tr6060. the linkage is in the middle hole havnt tried any others or bent the linkage no choke or choke flap took it off don't need it. Stock bottom end 350 shaved .030 vortecs with .015 head gaskets pistons are .018cc dish 253/253 duration .500/.500 lift 104 lsa circle track cam jegs dual plane new hei distributor 55 thousand volt coil 38 degrees timing all in by 3gs long tubes full 3 inch exhaust 2.5 tailpipes after axle has 4.10s going to change positions to see what happens
Have you changed jets ? Gotta get in the carb and make sure float levels and drops are good . Just helped a guy , one float was sank and the other side correct . Id swap jets . Should be .113 primaries n .107 secondaries new . Get some .110 jet size for primaries . Then put the .113 jets in the secondaries . I was messin with a 1407 last fall . Some dropped 4 jets sizes on primaries . Went back up 3 jet sizes n it was way happier . If you more than 2 jet sizes difference . You need to change needles too ! Be safe brother ! Hollar if you still need help !
@@theweldor757 have to verify jets but I set the floats when I rebuilt it
This fixed my problem
I bought a 3 gen Camaro carb swapped
It would drive good coasting but as soon as I came to a stop idled and went back to driving it’ll bog down , I would turn it off and the. Start up and then it’ll run again until I would come to a complete swap
I changed the gas tank , fuel pump , fuel filter and rebuilt the carburetor I had 5.5 psi of fuel and it’ll still do it until I moved the plunger linkage 1 hole down🤣
At least your on top now !
Sounds like my luck 🤣
Thanks i just built a 466 and put a 750 on it and it does the same thing. I will try putting it in that middle one tomorrow
May the swartz be with you always brother ! I know if you get to far out calibration wise itll stumble also . Ive sure helped alot a ppl by just goin yo thst middle hole . Gimmie some feed back please ! Make sure you dont have any vaccum leaks !
I'm only commenting because I have first hand experience with this. I had a 454 with sqaure port heads and the basics. It used to light the tires up on the street all day long, I was running 275/60s mickey thompson indy profile ss tires, I know they aren't the best but w/e. Ok so the first time I ran it at a prepped track, after doing a good 3 or 4 sec burnout. it hooked more than usual and it fell on its faced sounded like it turned off for about 3 seconds and then it blew some smoke out , cleared out and hauled but. my more experienced friend called it, he said move the accel pump one notch smaller. it was on the shortest(biggest squirt) and we put it in the middle and bam it worked a hell of a lot better still only ran like a 13.90 but thats besided the point. it was a 750 though but same principal. I guess my comment really doesn't add anything of value except the fact that I know what you mean lol .
Great story brother ! Thanx ! When i tried the upper hole my motor was running perfect . Fresh 350 power pak heads . Ran great . Tried that upper hole one day fr grins . Fell on its face ! Bad ! Went maybe 500 feet turned around went back to the shop . Put it back in the middle hole . Ran great again ! Looks like this video helped a lot a ppl ! Thats why i did it
Be safe my friend !
@@theweldor757 I eventually put a holley 800 double pumper and I liked it better its more tuneable. for example it has different cams to actuate the accel pump and you have a set screw to make sure it starts squirting as soon as you touch it. either way I now have a stock 350 and im about to put a edelbrock 600 on it and im just looking at videos on tuning them even though I already sort of know how but i still have some learning to do and prolly always will. anyway i think this is a pretty good video , i already knew about this though lol. but really that day if my buddy didn't tell me that I wouldn't of knew why.
@@davidcraft4909 i could bore ya fr months about how many holleys ive throwin away and put a q jet or edelbrock on for some one ! My old neighbor was good example . Like a 66 , maybe 65 mustang . Had a 292 in it 4 speed . Local garage talked him in to a holley . Ran horrible ! Fall on its face as soon as ya gave it any pedal at all . So he took it to a performance shop . They told him you bought the wrong holley . Ok , he buys another holley . Same shit . That was when i got involved . Told him i got a spare edelbrock if you want ta try it ? He wanted me ta work on his holley . Told him i wont touch that holley . But i do know a guy whos worked on holley carbs all his life . So i sent him up that guy . Few days later i see him n ask howd that work out for ya ? He said i bought the wrong holley . So my neighbor bought a 3rd holley . Still ran like asss . Even side steppin the clutch it would stall . Fall on its face and then slowly recoup . So i told him again . I got a spare edelbrock if you want to try it ! Im sick a this shit he says . I got a grand into 3 holleys now ! Took 20 mins . Had it hooked up good enough for a test drive . That little 292 laid down a good 20 , 30 foot patch a rubber , both tires ! I hit 128 in third gear then backed her down ! Guy was fillin his tank every 3 days with the holleys . He drove 2 weeks on one tank with edelbrock ! Guy called me Mr Edelbrock fr the next 2 summers lol . Ive done that 100 plus times for other ppl through 40 years ! Good times ! Be safe !
I have a chevy 350 with a Edelbrock 1406 600cfm carb same problem but the linkage rod is in the middle whole
Brand new carb ?
Check fr vaccum leaks . And if the floats are set to low, gas doesnt fill the accelerator pump well
All the way resilting in a half squirt from gas pedal
The carburetor has been on there for about 7-9 years it was only ran for about 2 years after its rebuild and then sat for about 5 years
@@stuka3213 if it sat dry that long it might of rolled the rubber cup on the accelerator pump when ya went to refire it ! Id pull the top plate . Take a quick look at the accelerator pump . Make sure you dont have a needle stuck in the seat ! Ive had the pump cup roll on me before ! Was just watching a video on china parts fr edelbrock . They sell a accelerator pump fr the edelbrock carb thats junk . Its shorter and has real cheesey rubber on it !
Do you think I should just do a rebuild and replace anything that may need replacing on there? Instead of looking for what may cause the problem
my 86 ss monte carlo is sitting in the middle hole and when engine is hot and you drop the hammer on the throttle,it chokes out for a few seconds before comes out of it. I dropped it to the bottom hole... gonna see what happens when rain stops. Hopefully works out. Thanks for sharing.
Make sure you float levels are good to ! If the float level is to low . It wont fill the accelerator pump well all the way . Resulting in a partial squirt off line ! Double check for vacuum leaks to brother !
Did you ever get it sorted?
@@zambino8763 I added 3/4 spacer to carburetor. That took care of it.
@@felkerforcongress I have a Monte as well, and have been fighting a launch bog for months! I'll try a spacer. Ill try anything at this point! Thanks for the reply!!
@@zambino8763 welcome...hopefully that helps you. I can also now without pressing on gas 5 times just reach inside window grab my key and turn ignition over and it starts right up every time after it's been warmed up. Before when hot it would take me pumping the gas just to get it started. I put my accelerator pump back in middle where originally was after installing 3/4" wooden eldebrock spacer (bought off Amazon $38) and couldn't believe that's what fixed it, and runs like it's git more HP.
Tried my brand new 650 in all three holes and still have a flat spot. Tried step up springs tried fattening the air mixture and leaning. Can’t get rid of it
Go back to the middle hole on pump arm . Go back to yr 5 hg (orange) spring the ones that came with it . That way were not creating another problem while looking for a problem ! Check for vaccum leaks . Carb ports are plugged . Check the brake port on the back . Make sure its tight and not suckin air . Once your sure thers no vaccum leaks . Double check your timing . If its still havin a flat spot . Pull the top plate off the carb . Easier to just pull the carb . Then pull the top plate . Check the float levels ! Make sure ther not set to low . If ther set to low it wont fill up the accelerator pump hole all the way . Resulting in a partial squirt when you give it the gas . Ive seen the floats totally out of whack brand new out of the box ! Just start eliminating stuff one at a time . We know the middle hole is good ! We know the 5hg springs are good .
Check for vaccum leaks before you pull the carb ! Just cause its new dont mean shit any more ! Just helped someone with a 650 . Someone put really fat jets in it . Stock jet was .100 . They put a .104 jet in it . Had a stumble off line . Put the stock .100 back in . Helped some . Went to a .098 . Helped a little more . Went to a .095 .
Off line stumble went away ! Runs great now ! Check all that stuff . If your still havin issues hit me again ! If you pull the top plate off carb . Check jets . Make sure ther whats supposed to have come with that carb . Secondary jets are one size smaller than primaries . Take the secondary jets and swap em with the primary jets . That will lean the primaries one stage . What motor are we working on ?
@@theweldor757 it’s 358ci sbc on airboat. We lock timing out on those so it’s set at 32*. I sprayed carb cleaner all around base and vac ports. Only one I’m using is the pcv port on the front.
@@theweldor757 I am back to middle hole on pump. Have 8 spring in it right now but not much difference from the 5
@@Bradofmaccly 8 hg is instantly gonna stage power mode brother . Try the blue spring just because thers not normal load being a boat ! Gonna have to check floats . Id swap jets front ta back also . Try the weakest springs ! Ive tryed the stiffedt springs before . And was always n power mode . Go the other way n see what happens !
@@theweldor757 put squirted arm back in center hole and blue springs in and still i think it will shut off if I go from idle to wide open instantly. It stalls bad
Ok so when you say flat spot do you mean when you go to accelerate it acts like it’s going to stall? Trying to figure out my 454
Yes ! If your on the top hole on accelerator arm it strokes the accelerator pump so much it can give it a stumble . Just falls flat on its face . About the time you think its gonna die itll come around some ! Are you working on a brand new carb , or used ? Double check for vacuum leaks also . I did a video on Edelbrock staging springs . Watch that . Itll help you trouble shoot . Itll tell you if the carb is staging from cruise to power mode like it should . Im walking a job . But i got the phone with me if you need !
Thank you and yes working on a new carb and yup it was in the top hole. 😂 just my luck went to fire old blue up and nothing. Why you may ask well the brand new fuel pump stop working so now I have to wait until this weekend for it to show up. Can’t wait to see if this works lol
@@battlehusky5812 sounds like my kind a luck !
I called Edelbrock a year or so ago . They assured me they DONT ship them in the top hole . 🙄 If you're doing a electric fuel pump . 4, 5 psi on a fuel regulator should be perfect !
@@battlehusky5812 you need anything . Hit me brother ! Be safe !
@@theweldor757 Thank and yes that what I ordered.
I find it odd that you had this issue!
I’m running an edelbrock 500 AVS on my mild 318. I bought it new,it was in the middle hole but we found on the dyno that it wasn’t enough fuel on initial take off so put the pump onto the top hole,still not enough so drilled out the squirter a from 28 shot to eventually we got to 36 shot. Much better like this.
The accelerator pump diameter must be differnt from 500 cfm to 600 to 750 . Ill have to check that out . Top hole drowns my neighbors 650 hp 427 . But were mile high also . My motor ran great ! 350 sbc . Rv cam . Power pak heads . I tried the top hole and drowned my motor bad . Put it back in the middle hole . Rip mode again !
@@theweldor757 all I can add to this is that every motor requires different tuning, no two act the same! You must do what works for your application!
Exactly ! Do what works best ! This looks like it helped a lot a ppl out over all . Mission accomplished ! Thanx fr yr in put buddy ! Be safe !
@@theweldor757 thank you sir.
What are the holes measured in? I'm thinking of doing the same.
JUST FYI, THE CARTERS ARE MADE OUT OF A BETTER GRADE OF ALUMINUM THAT DOESN'T POLISH WORTH A CRAP. THE EDELBROCK IS MADE OUT OF AN ALUMINUM THAT POLISHES UP AWESOME BUT, MAKES IT BOIL THE GAS OUT OF THE CARB IN A CLOSED HOOD SITUATION USING A THICK HOLLEY GASKET OR PHONOLIC SPACE WITH HELP WITH THIS.
Your right for sure ! Gotta run that phenolic
Spacer for sure ! Thats part a why i like q jets . Single bowl . Middle a the carb . Way less heat affect on fuel . Thanx for the contribution !
off idle stumble in cam up motor is very common with these, middle hole bottom hole all the same, you lift off at the lights and it nose dives, they have a lean idle circuit and pump delay sloppy pump linkage, man i am at the end of those carbs, holley all the way if you want good drivability and mannerism on the street. funny how this condition does not exist on older carters from the late 60's early 70's. fatter idle circuit i guess idle down leg does not empty before the pump starts to squirt.
I've never had a issue with Edelbrock carbs . They leave the line hard when there set right ! Kinda part a what put Carter on the map in the 60s . I agree . I don't remember this issue with Carter carbs . I'm 60 . Seen a lot a Carter's back in the day . I've throwin around 30 holleys in the trash through the years . Run one day and not the next has Ben my experience with holleys . We were just talking about holleys last night . My old neighbor had like a 67 mustang . 289 with the Ford 4 barrel heads . Always trying ta get it running right . Hit him up see what was going on . Local garage talked him into a Holley . Ran horrrrible . Soon as ya gave it any gas it would fall on its face bad ! 4 speed . So he had went to a different garage . They told him you bought the wrong Holley . Shit ! He buys what they say he needs for it . Same problem . You couldn't even side step the clutch with motor half reved . Just fall on its face . I told him I got a extra Edelbrock if ya want ! No I gotta figure this out . I won't work on it I told him . I know one guy thats ran these all his life , has a wrench shop 10 miles down the road . Send him over there . See him a few days later . How'd that work out ? It didn't he says . Same shit . My guy told him you bought the wrong Holley . So the poor guys got 3 holleys now . No of them run . Told him again , I got a Edelbrock if ya wanna try it ? Ok , nothin ta loose now ! Took about 20 , 30 mins . Had him hooked up . Go for a test drive ! You drive he says . Ok . I lived off a highway . Seemed way happier ! Side stepped the clutch . Ol girl layed down a nice 25 , 30 foot patch a rubber ! Got a posi at ? Guess so he says ! It's never ran like this he says . Hit a back road . That dam car hit 128 mph on the dash , n 3rd gear !
He was burning a tank a gas every 2 days going to work and back with the Holley . He drove 2 weeks on a tank with the Edelbrock and layed rubber doin it ! Guy called me Mr Edelbrock for the next 2 years ! I've literally throwin around 30 holleys in the trash since late 70s ! Most my buddies are Ford Holley guys . They won't race me any more . My q jet spanks em every time . And I get 4 ,5 more miles to the gallon than they get . Thank for checking out my channel brother ! I love as much feed back and in put I can get !
@@theweldor757 well there you have it lol, for me and years of racing, holley rules it's just that simple. never had any tuning issues that could not be fixed with a holley,4 corner idle removable air bleeds, they work great and tune well.
@@richardlavoie1708 may the Swartz be with you always brother ! Be safe !
I have two edelbrock carbs on a 350 sbc with a tunnel ram. Both are using "your top hole" Engine runs great. These carbs are awesome. I believe you have other issues. Not the excelerator pump. Maybe too much carb for your engine. Maybe timming, maybe jetting in carb. Weak spark.
My motor ran 10 point on the middle hole . All i did was put it on the top hole . And it sucked ! Went back put it back in the middle hole . Ran 10 point again ! 350 with power pak heads and a rv cam . I tried the top hole WITH the motor already runnin great ! Top hole shut it down ! Only ppl i know of gettin by on top hole are running 500 cfm carbs ! And a single plain intake we ll respond a lot differnt than a dual plain . The last 2 guys that said what yr sayin . Top hole runs good . Found massive air leaks . Fixed em . And then commented back : Dude you were so fuckin right on the air leak ! My neighbors car dynos at 650 horse . Left the line funny . All i did was put his linkage back in the middle hole . Guys says its never ran that good in the 20 years hes had the car ! That carb came off like a 850 horse big block . Left the line funny . Guy gave it to my neighbor . Who was gonna pitch it . Till i seen it was in the top hole . 67 RS/SS 427 . 6 speed tranny . Cant get out of 1st n 2nd fast enough now ! So i personally know from experience that at least up to 700 horse . The top hole to much gas ! I stand my ground ! Look at all the comments . Thanx man ! Bingo ! Thanx body . All these ppl went back to the middle hole and it fixed ther problem ! What do i know ? Ive only worked on em fr close ta 40 years now . Be safe !
My experience has been similar. I'm using a single carb, but on a 455 olds. "Top hole" wasn't enough fuel off idle in my case. I guess it all depends on the application!
@@badgerbait8351 my neighbors 427 dynos at 650 horse . Top hole was 2 much fuel . It came off a 800 horse motor . That guy gave the carb to my neighbor cause he thought it left the line not right . So i know like up ta 7 , 800 horse , top holes to much . Thers ben several ppl comment sayin ther usin the top hole . But all of but like one found serious vaccum leaks then commented back the top holes to much now . One guy was pretty funny . He emailed back a week later . Dude you were so fuckin right about a vaccum leak . Now that the vaccum leaks gone i had ta move to the middle hole ! I like q jets best ! Best stock torque numbers came off a 455 with a q jet . Stock like 71 , dyno was 510 foot pounds a torque ! Be safe brother !
@@theweldor757 Thanks! As soon as it warms up here I'm going to play with this more. BTW, I love q-jets! Just wish I was more comfortable with their tuning!
@@badgerbait8351 i did several videos on q jets on my channel . How ta do secondary well plugs . Float advice . Filter advice ! I like the bottom end on the edelbrocks ! But when i floor it im goin fuck , whers the top end ! Them spreadbores pull like a fuckin freight train ! I get 15 miles to the gallon with 35/12.50 tires . And spank my holley buddys when we race ! Ben runnin q jets fr 40 years now ! I remember racin a guy with a .030 over 390, melling cam , holley . I had a stock 307 i put a 327 intake on so i could have a four barrel . N headers . All stock . Single left hand turn . My buddys in front . We rolled the corner . I was a car length behind around the corner . I jumped into the merging lane from a car behind . Popped that spreadbore ! Went on by and put 2 car lengths on him ! He was pissed ! FUCK ! I cant fuckin believe that ! SHIT ! FUCK ! Ya got out front and i couldnt chase ya back down ! FFFUCK !
I was laughin my ass off ! Another buddy had a fresh ford 400 . RV cam headers , boat anchor holley . Im n a 79 blazer with 200,000 miles on a stock 350 . Q jet n headers . 400 was in a 79 ford short bed . Even my buddy agreed i got him by at least 12 truck lengths ! Ill take a q jet over any thing every time ! Be safe brother ! Have safe Christmas 🇺🇸🇺🇸🇺🇸
I've got a Performer 750 on a 454, mounted in the top hole, with no issues like this "flat spot" thing. the only thing i struggle with is getting it over 4000rpm (assuming my rpm gauge is working correctly). Gonna send it to an ingition timing adjustment, and then get someone that realy knows these carbs to take a look at the jet, rods and squirts combination.
Allso.. saying the top hole will not work guaranteed is kinda "false advertisment". It is made to work for certain scenarios. It says in the manual that the bottom is for smoother accelerations and less fuel usage. Top hole is for street rod/race. But if your jets, rods and squirts are too big or too small, then ther's your problem. The problem is just noticeable different when using the top hole.
If it doesnt work in the top hole, but suddenly works perfectly in the middle, then something smells fishy, if you cat my drift. Then something should still be wrong, its just not as noticeable.
That bracket with the 3 holes are not doing anything other than regulating how fast and how agressive the throttle respons is (or Should be), it has nothing to do with the potential amounts of fuel going into the engine!?
Those 3 holes on the pump arm controll how much gas the accelerator pump gives . The 427 this guy has is hittin around 650 hp on the dyno . Edelbrock says they do not ship on top hole ! But ive found them on the top hole brand new outta the box . So i definetly know from personal expiereince
That stock 350 up to 650 horse big block . The top hole strokes to much gas on launch . Was ther , drove em ! Before /after ! But your right i should not of worded it how i did ! Thers quite a few ppl that chimed in Thanx in the coments . Looks like it solved the problem fr a lot of ppl . Seems ta me any how a guy would half ta be really really lean on jet / needle combo to off set the the extra fuel . Or , have a low float setting to wher you only get a half squirt any how . Or a vaccum leak .
The guy with the 650 horse motor got the carb fr free from a guy that had like a 800 horse motor the carb was on . He didnt like the way it ran so he gave it to my neighbor . Whi is real sharp portable mechanic guy . I couldnt tell so much being a passenger . 67 camaro . 6 speed tri mec . But he said something when ha took me fr a ride that he felt a stumble . So i put it on the middle hole from the top hole . Stumble gone . Cant get outt 1st n 2nd gear fast enough now !
Mine does it on the middle hole, any ideas?
Check for vaccum leaks first brother ! All carb ports ! Intake ports ! Brand new carb or used ?
@@theweldor757 it’s brand new I’m not sure which port to hook up my vacuum advance to for sure. I’ve got it hooked to the driver side one. It only does it when I drive it. Not when I rev it parked.
@@CoyoteCarChannel make sure your timing is right ! I plug the vaccum advance off . Then i can run more intial timing fr stronger bottom end ! Which carb number ? On a small block ?
@@theweldor757 I switched over the vacuum advance to the other port and my 440 dart is flying now!!
This isn’t necessarily the case with every carb, I’ve been running the top hole for years and my engine runs fine
No , but fr 90 percent of us its right ! Even my neighbors 650 horse 427 was drowing off the line in the top hole . And the guy that gave him the carb had it on like a 800 horse motor . Thats why he gave the carb to my neighbor . Cause he didnt like the way it left the line ! Runs like a raped ape in the middle hole on that 427 ! Cant get outta first n second gear fast enough now ! Only person ive seen get away with top hole was on a 500 cfm carb . The 2 other ppl ive talked to that were tryin ta run top hole had leaned ther stuff way way out to off set the massive squirt from top hole . They had all kinds a issues goin on being that lean
@@theweldor757 yeah that’s crazy, personally I wouldn’t even use an edelbrock on a high performance motor. I’d use a Holley for that. I’ve got an edelbrock on a Chevy 350 in a daily driver square body and to be honest I’ve played with all three positions and have never noticed a real major diff in any three holes but that’s just my experience 👍🏼
@@doomcrewoutdoors1613 thanx fr input fr sure brother ! Ive throwin like 30 holleys in the trash through the years . Race all night long and tamorrow wont even start was my experience on holleys . My whole crown is ford / holley nuts . My Q jet on a 400 sbc eats ther lunch like clock work ! They all run back to ther holley guy . Whats with this guy and his f n Q jets 🤣😂🤣
One of em 390 , .030 over . Melling race cam , headers n a holley . Im n a stock 307 that i put a 327 intake on so i could have a spreadbore carb n headers . Ate that 390s lunch . I came from a car length behind and then put 2 , 3 car lengths on him . My crowds holley mechanic is who it was . Dumped that spreadbore n just shot past him . Man he was pissed ! Sh!t ! Fu#k ! I cant f n believe that ! Son of a , , ,lmao ! My neighbor in the 90s 65 ? Mustang . 289 . One a the garages in town talked him n to a holley . Ran like ass ! Guy barley made it home . So he goes to another garage . O you bought the wrong holley ! So he buys another one . Ran even worse ! So he hits me up . Hey i see ya workin on a lot a cars fr ppl , can ya help me out . Sorry brother , wont work on a holley . Got a edelbrock you can try ! No no i gotta figure this out . So i sent him up to my holley buddy . My guy tells him : so sorry , you bought the wrong holley ! My neighbor , goes out and buys a third holley . Seen him a cpl days later . Howd that work out for ya ? It didnt . Cars barely runnin . Soon as you gave it any gas at all , wooof fall on its face . I still got a edelbrock you can try . Sure he says nothin to loose at this point . Took maybe 20 mins . Fired that 289 up . And right out the gate its WAY happier . Idles good ! Throttled it a cpl times , no wooof , no fall on its face . Test drive , you drive he says ! Ok . I jump out on the highway and nash the pedal . 4 speed manual . Were side ways on the highway ! Told him shit you got a posi ! Geuss so cars never ran like this before ! Dam little 289 hit 128 mph in 3rd gear ! He suckin a tank a gas every 2 , 3 days with the holley ! Drove 2 weeks on a tank with a edelbrock ! And laid rubber doin it ! Guy called me Mr Edelbrock fr the next 2 years lol ! My neighbor with the 427 . Tried 2 holleys and a holley sniper . Says the car has never ran as good as it does now with a edelbrock ! My buddies get 10 mpg . I get 15 and eat ther lunch ta boot ! Just a quick lesson i learned in life ! Got a filing cabinet full a : pulled your holley and went back to q jet that does circles around the holley they had ! Literally ive throwin over 30 holleys in the trash ! Ive yet in 40 years ta have 1 person want ther holley back on ! Half of em said the same thing . Want yr holkey back on ? Screw you dude ! You can throw that thing out the window ! Lmao
@@theweldor757 that’s a cool story but I’ve been in and around competitive drag racing for years and I’ve used and tuned a Holley 4150 the entire time and have never had any issues, further more go to the drag strip and count the number of edelbrocks you see on competitive cars you won’t find many if any
@@doomcrewoutdoors1613 were mile high . Holley is just to much irregularity here at 6000 feet . The guy with 427 is well knowin n our area . Hes a portable mechanic . Sharp kid ! He liked the way edelbrock ran so much he pulled the holley on his 32 coup and went edelbrock also . And then that sat the standard here in our community . All kinds a ppl that were strugglin followed suit . All kinds a duel carb edelbrock big blocks runnin around now . Thers one guy in a 69 camaro . Still has a holley around here . He has ta pull over every cpl blocks cause his rides floodin so bad it wont keep runnin ! Just drowning the motor ! The holley guy i grew up with has ran holley fr 50 years now . Couldnt make that mustang run . He races on the weekend . Builds fords fr other ppl . The last race motor he built fr a guy with holley was a joke . Strugglin hard so they threw a air/fuel set up in it . They had to drop the jet size by 5 numbers to get the air/fuel to dial in . It was so rich it d burn your eyes standin around it . 2 other buddies just did a 400 sbc . Brand new holley outta the box ! This guy builds blower motors n ships em around . I step in . Whers your holley ! After spending all weekend trying to get the holley to idle . They gave up snd put a edelbrock on so they could drive the car and break the motor in ! They bet each other that d be the first thing id notice . Whers yr holley ? And then i come along with a 400 sbc n a Q jet and spank every one lmao ! My 400 sbc calced 16.6 mpg . While they get 10 mpg . And i beat em when we race ! Great yammerin with ya ! Love hearin what others are doin brother !
eldabrach? ha. cool. take a shot.
Lol . Grew up with a speech inpedament .
Got drilled hard in elementary school for it . 69 , 70 , 1971 or so . D and t 's .
If Brock Lesnar had an older brother, he'd be know as.... The Elder Brock.
🤣😂🤣😂👊
If Darth vader had a sister she would be Ele Vader !
What’s an “elderbrock”?
Second best carb ever next to a wochester spread bore 💪🤣
Repeat after me. Ed. L. Brock.
E , D n T . They dont come out very well . Had to do speach therapy in grade school for that !
They ship them with the lever in the top hole. Bought a 750 that’s how it came.
Yah i called edelbrock and talked to them . They assured me they DID NOT ship them in the top hole . I told em ive seen several brand new outta the box carbs in the top hole . The guy said no no no . We dont ship em on the hole 🙄
Thats what i learned that on was a 750 . Almost kill my motor on the top hole . Flood it bad . Went back to the middle hole . Ran excellent again
@@theweldor757 mine would fall on its face then grab and lay stripe’s it was scaring the neighbors.
there is no such thing as " one size fits all".. mine runs best in the top hole (360 in heavy truck)..you have to experiment, see what works best for your application.. thats why it has 3 holes in the first place.. for adjustability..
Definetly ther for adjustability ! My neighbors 427 dynoed at 650 hp . It was to much gas . Fell on its face on the top hole . He was givin the carb off a 800 horse motor . That guy hated the way it left the line so he gave it to my neighbor . Most every person on this thats said what you say . Hit me back later n said yr right i found a vacum leak ! I tried it on my 390 . 30 over 268 comp cam . Top hole killed it ! Fell on its face . Put it back in middle . Ran like a raped ape . That was in a 71 f350 with 2 welders on it . Truck weighed 12,400 pounds . I got 13.5 miles ta gallon ta boot ! With my Q jets i pull 15 , 16 miles to the gallon ! And kill my holley buddys every time we race ! Killed roys 400 fresh big block . 30 over rv cam holley . He agreed i got him by 12 truck lengths . I was in a blazer with a stock 350 with 200,000 miles on it . Ill take a q jet over any thing . Be safe ! Thanx fr yr in put !
Why would you use crap carb like that
I'll take a q jet over any thing . Edelbrock next . I've throwin some where around 40 holleys in the trash for other ppl . Put their q jet back on for em or Edelbrock . Some of the older Carter's were bad ass carbs
great video my brother
Be safe my friend !
I got a street demon carb kinda like the avs2 dead spot right out of the hole pumps in second hole
Dont those have a power valve like a holley ? Never messed with one
If it was me id change out the power valve . Just googled it . Thats how a holley stages cruise mode to power mode . I no if a holley back fires it takes out the power valve
@@theweldor757 it's built like an Edelbrock avs2 there's no power valve I don't think
Holleys are always fooding it seems like . Ive literally throwin like 30 plus holleys in the trash . Run taday and not tomorrow . Best advice i can give ya buddy . Check the power valve . Check for a vacuum leak . I just am not that familiar with the holley stuff !
@@theweldor757 ok I appreciate I've always ran Edelbrock idk y the hell I bought this damn thing this time
Juat got a new one yesterday and no surprise it was on the same top hole
I swear someone from holley is workin at edelbrock 🙄
I called edelbrock before i made this video . They assured me : We dont ship them in the top hole the tech guy said !
I swear a holley guys workin under cover at edelbrock on the assembly line !
@@theweldor757 Yep it was even enough to make my 454 stumble, they definitely shouldn't send them like that lol
@@chrisnielsen5467 makes me question some a these other ppl . One guys a 318 sayin the top holes not enough fuel . Need more fuel ! Hmmm
Dont add up . Glad this helped out brother !
bottom hole will not work on lt1 350
Good input . Thanx ! Cpl ppl posted ther runnin bottom hole through here . But real small motors !
Mine came stock in the middle hole.
Ben a hand full a ppl lately sayin thers came outta the box on the top hole ! Glad ta hear they got one right !
Mines on the top hole. Every situation is different I guess. My deal was the car would stumble once u let off the gas and get back on it.
Every situation definitely is different . Did you try the middle hole ? A cpl a these guys have close to 800 horse power . Top hole was to much gas ! Guy across the street has a 650 horse 427 . Top hole was to much gas on launch
@@theweldor757 My Foxbody also prefers the top hole. They are lighter cars than the heavy older cars
@@mikerovere6896 thanx for the input brother !
@@mikerovere6896 i no were mile high here . 6000 foot . Its just to much gas up here for the average guy ! I was supprised when my neighbors 650 hp 427 choked on the top hole ! That carb came off a 800 hp big block . The guy that gave it up said it left the line wierd ! 6000 foot a altitude changes the hole game here
Well shit...I need to withdraw my comment. That top hole is too much gas in the summer. The extra fuel did fine in the cold winter. Is the bottom hole just a leaner option? Thanks for getting back with me
The 1406 is supposed to be in the middle hole.
Ive seen several now . New outta the box . Top hole ! In the 90s the 750 came out the box on the middle hole !
The rod is upside down.
Your right . But it doesnt change the geometry of whats happening ! Through one together for the video . Ive actually ran a cpl like that . Doesnt change anything . Good eye ! Your the second out of how many views ?
I got a flat spot no matter what hole I'm in. New out the box. I'm about done dumping money into old shit. Imma just start buying new vehicles at least I don't have problems
What are we working on brother ? What motor ? What carb ? Did you check the floats n stuff in side ? Ive seen them brand new outta the box with floats messed up . If your float doesnt drop the right amout the bowl cant fill with gas . If ther set to low the well for the accelerator pump cant fill up with gas ! Unfortanetly just cause its new means absolutley nothing ! As far as getting something new . I just made that mistake last year . Sold my 1990 k3500 dually after 4 years a service in the field . Upgraded to a 04 duramax . Trucks ben in the shop 5 times now in 15 months ive had it . Last month was 6000 for injectors . Last april i was on gig 1300 miles from home . Flex plate gernaded . Left me n the help stuck in a motel fr 5 days . Last week the head lights wouldnt shut off . This morning the tail gate latch busted . In the last 15 months the truck has cost me almost 10,000 in work alone . Close to 20,000 with missed work . Should a kept my 1990 . Broke down once in the 100,000 miles id put on it . This 04 ive put on 30,000 miles and its cost me 10,000 in work done to it !
@@theweldor757 82 camaro with a 406 sbc stock heads edelbrock performer intake. 1 inch carb spacer. I've thrown everything but the kitchen sink at this carb. Float bowl height, correct fuel pressure, the springs for the idle needle things cant think of the name right now. No matter what i do i get a stumble. It does it less on the top hole but still does it.
@@whodatisful what cfm carb ? Gimmie a carb number . So your 30 over . Whats it have for a cam ? Whats your intial timing ? See if i can help ya figure something out !
@@theweldor757 750 holley street demon and unfortunately I have no idea what cam and neither does the previous owner. Motor is happy around 32- 35 initial. Also only pulls are 10 or 12 on the vacuum guage at idle. The idle seems to be happy around 1000 rpm. Everything is tuned with car in gear
@@whodatisful i cant help ya on a holley brother . I gave up on those in the 80s . I could bore you all night with stories helpin ppl out by taking ther holley off and putting a edelbrock on . Problem solved ! Ive throwin around 30 holley carbs in the trash . One example . An old neighbor 20 years ago . Had a like 65, 66 mustang . 289. 4 barrel heads . 4 speed . Car was at a local garage . Tune up dont run right . Garage talked him to a holley . Didnt run any better . Takes it to another garage . They told him you bought the wrong holley ! Buy this one . He buys that one . Left the garage with the car barely runnin . I didnt know him yet . But hes out side workin on it . Sounds horrible . I introduced my self . He told me the story . Wanted ta know if id work on it . Nope sorry . I only no one guy that has luck with those . Send him up to the mechanic i know . He tells him the same shit . O you bought the wrong holley . So my neighbor buys a third holley . I see him a cpl days later . Hey howd that work out for ya ? It didnt he says . Same problem . You drive it he says . Went around the block . Tital disaster ! As soon as you hit the pedal the motor would flood out . Couldnt even rev it up and side step the clutch . Instant choke . So i told him i had a edelbrock if he wanted to try it . Nothin ta loose he says . Took about 20 mins . Git a 600 edelbrock on it now . Fire it up . Seems way way happier ! Test drive . That little 289 laid down about a 25 foot patch a rubber jumpin on the highway . I told him ya got posi ay ? Geuss so lol ! Cars never ran like this ! Little car hit 128 mph . In third gear ! Guy called me Mr Edelbrock for the next 2 years till he moved . Guy was goin through a tank a gas every 2 days goin to work with that holley . He drove almost 2 weeks on a tank with a edelbrock ! And laid rubber doin it ! Ive done that 50 flippin times through years for other ppl . Threw ther holley in the trash put the original q jet back on or a edelbrock . I havnt worked on holley for 30 plus years ! Sorry brother ! See if someone you know has a edelbrock you could try !
Thank you body
Any time brother !
Damn people! I swear yall do this on purpose! It's pronounced Ed-el-brok! Not El-da-brok! It is spelled Edelbrok!!! Say it right!!!
Edwin Vazquez just googled edelbrock manufacturing . Its clearly spelld EDELBROCK !
I see what your saying brother . The first D is silent ! Lol . I still struggle ta not say Carter . It was Carter the first 20 years I was around them ! I would of never noticed it if you didn't point it out ! Be safe !
Your 100 percent right !
ED-el brock .. not EL-de Brock... lol
Thats what happens when you have a speach inpedament . Dogged me all through elementary about it . Ds n Ts is what it is . Its ther , just hard ta hear it
i have it on the top hole and it responds perfect with no bog out, adjusting the jets is what it is
If you adjust your jets lean enough for that much gas on the excelerator pump at launch your gonna be way lean after you give it the gas on launch . After the launch , vacuum is pulling fuel through the Venturi the accelrator doesnt give it any more gas .
This last guy we left the jets stock for a 750 cfm . It was on a 427 BBC that produced 650 hp on the dyno . Top hole was to much fuel ! It still ran , but not right . So what your sayin dont make sense unless thers a vacuum leak off setting the extra fuel its gettin ! Hey , as long as its running right ?
@@theweldor757 tru as long its running,idk y but i cant tel the difference when connected on top
@@JM-xi8uz your the FIRST person in over 30 years that ive ever herd of running the top hole and NOT having a issue ! The 427 guy got that 750 Edelbrock for free . It came off if i remember right a motor that had like over 800 hp . Guy was racing with it at the track . Didnt like the way it ran so he gave it away . Edelbrock ASSURED me they do not ship on the top hole . Which i know isnt true cause ive seen them brand new outta the box twice now in the top hole ! I know if the floats are set to low the gas cant properly fill the accelerator pump well . Maybe your on the top hole . But only getting a half squirt ? When i tried it it was on a 350 sbc . 305 heads . RV cam . Headers . It took like 3 seconds plus to recoup from that much gas ! Fell on its face BAD ! I changed it back to the middle hole immeadently ! My flat spot went away ! Just my opinion . But something dont seem right brother ! Be safe !
Rod is upside down.
It is . Its a parts carb some one trashed in side . Didnt notice when i made the video . But yr right ! Dont think the geometry changes . But you are right ! Dont remember who gave me that one back in like 93 . I ran it fr a week end . Went ta jet it . The guy epoxied the jets in . Ther totally stripped out . Pulled it . Its just ben a parts carb since !
1406 top is for hot rod he got junkyard shit
Dude, its EDELbrock not ELDERbrock..
Speech impediment !
D n T . They drilled me hard n 69 n 70 in elementary . Its not a elephan . Its a elephanT ! D was n is the same way still !
Thanka for tips, from your experience! But please, PLEASE, do something. Stop saying El debrock. The word, the brand, the family name is Edelbrock. It sounds as dumb as the people that say Wall Mark. It's Wal-Mart. Say it with me EDEL BROCK, EDEL BROCK. There, fixed it for you.
If only it was that easy !
I had a speech impediment growing up . Had to go to speech therapy for D's and the letter T's . They still dont come out my pie hole very well . I still remember getting drilled fr the letter T in the 3rd grade . I still remember that lady tellin me Its not a elephan . Its a elephanT ! It is what it is ! Was up till 1 am dialin in a 750 carter competition series on the 383 in that orange challenger back a few videos . DAM that car is leavin the line hard now !
@theweldor757 A thousand pardons sir. One day I'll learn to keep MY mouth shut.
Learn carbbies, lol
All 3 hole work you got to no what u are doing top hole is for hot rod bottom hole is for cruising
Thats so far off base i dont even know what to say