Fuel lines plumbed to the throttle body are not dual feed. One is supply and one is return to tank. Throttle body has an internal passage to move fuel to front and rear set of injectors.
Had to use 20kOhm plugwires 2 workaround nonexistent shielding/emi protection on sniper 1. Watchout and be prepared for EMI due to poor electrotechnical design on any aftermarket EFI close to hi power AC sources. Hope this helps anyone in need.
@@2HacksGarage awesome, thanks. I'm going to the sniper 2 soon. Just wasn't sure what the benefit was switching out to the Hyperspark. Currently running DUI HEI crossfire distributor. Love how clean it looks with 1 3 5 7 and 2 4 6 8 all on the same side. No crossing wires.
EFI or LS, I don't know what to do. I love my 454 but hate dealing with carbs, I want to be able to drive it with no worries, better MPG etc. Choices, choices..... Most people I know who did the efi upgrade love it but still decided to upgrade to LS and they like it better.
Honestly, I’m a bit old school but prefer drivability. I have nothing against the LS platforms, they are awesome and affordable. That being said, I prefer a classic V8 and Holley Sniper. You can’t go wrong with either, Holley makes many great upgrades for both classic and modern engines.
12:52 WHOA!!!! epici! .. I did not know the fuel was injected in a circle like that on every "barrel" (I am just getting back into hotroading as I'm retired, everything used carburetors back then) The fuel rains down like one of those face expensive showers, you see on home renovation shows!!! LOL
Curious if you did a mpg compare. Im trying to get better all around mpg from my 396 stock motor. Thinking the Edelbrock pro flo efi may get better mpg results. Any input would be appreciated..thanks for the video
We did not do that. But the system is designed to be efficient and provide the fuel needed to make power. I can tell you this though, it’s a massive improvement on fuel consumption and drive ability
2:27 With my age and eyesight?? I find the PDF online to be much better for reading ..... just click the PLUS SIGN a few times make the words size you want!! I've read over the instructions on line 5 times, but will load them into my old iPad when we start bolting it in!! Can't wait to install the sniper 2, holley fuel regulator, and original CAT fuel filter set up!!... hopefully next week! :)
It's pretty awesome Holley provides multiple ways to view the instructions. The install is pretty smooth, you'll have no problem with it! Good luck my friend!
3:59 ... The Holley Power Distribution Model is BOSS .. I could not get one short notice but I WILL upgrade to it some time in the future, .... maybe if I get the Holley Hypersark system when I do. :) 8:39 :) I JUST put a brand new distributor in a few months ago ...so i'm gong to keep using it for a year or so. :)
On the Sniper 2, There are two Adjustments screws with green springs around them. I really want to know what each screw adjusts? Like the front one (towards the front of the turck) adjusts _____ ? And the rear most one is for adjusting the _____________________?
Front (toward the front of the truck) or BACK. "With the vehicle in neutral, adjust *the idle screw on the primary shaft* until the IAC Position reads between 2% and 10%. While adjusting *the throttle plate screw*, watch the TPS value."
3:18 ... EVERY install of Sniper 2 I've seen on UA-cam uses an inline pun ... I REALLY recommend an in-tank pump, they run super COLD dipped in gas all day long! :) .. 13:13 I like the looks of Holleys intank stuff, but I really don't want to hole saw my old gas tank .. maybe when I get a new tank someday I'll swap up to Holey's pump. For now I have purchased a decent "OEM replacement" rated pump by Quantum. .. it's small enough to fit in the stock hole, and on the stock fuel pump support .... and still keep my old fuel gauge! :)
the in tank pump is really good! That being said, we chose the one that came with the kit. The pump that comes with Sniper 2 kit is an upgrade and works really really well!
I have a question I can't seem to get an answer too I have an Oil Pressure cut off for my Fuel pump will this cause issues when I install my Sniper 2 ?
@2HacksGarage I'm waiting for the Sniper 2 but as it is now the fuel pump won't pump unless there is oil pressure in the motor.. it's a fire safety thing
? I notice that there is only one o2 senser which sounds good if you are running a single exhaust, but in a dual exhaust system there is only one bank of cylinders being monitored. would it not be better to have an o2 senser for each bank in a dual exhaust system.
@@2HacksGarage: still only reading just the one side of the engine. in a V6, and V8 engines you need two o2 sensors. so why do the aftermarket only do just one? they should design a system with two o2 sensors.
It's unnecessary to run on each bank. System is recording the average on the one bank accurately enough to meter the whole engine. Most 4cyl engines run the O2 in one of the head pipes, so it's only recording 1 cylinder's O2. Remember, all cylinders are going to be roughly the exact same as long as everything is mechanically sound.
@@007freakazoid; on a I4, or a I6 engine that would be great. on a V6, or V8 with dual exhaust no. one o2 sensor will only monitor one side of the engine. I prefer to have two o2 sensors to monitor both banks.
Very true and we went the same route... In the end on the sniper 2 kit came out and was compatible with the dual plane It was actually worth the reliability tuning ease and fuel mileage and comparable performance. Coming from a dinosaur who does not enjoy any electronics on vehicles hardly, this is my personal opinion. The carburetor is much cheaper though especially if you're good with minor tuning And just looking for solid performance probably better.
I have $3600 tied in a 2x4 sniper 1 system -pump hoses etc. now I need $950-1250 professional tune. Not happy not doing it. Two AED carbs on the way. 👺
@@autosalvage I'm looking for same set up. 373 from Smeding with Sniper 2, on my 85 GM stepside. Just curious on fuel system delivery. Still want two tanks. I'm sure there's a way. Good luck. Ol' trucks rule :-)
5:04 .. The O2 sensor is too far from the engine in my opinion Holle recontends to put it within 8 r 0 inches of the header collector (down wind of course) ... BUT?? In your case with the Cat right there, providing some back pressure, and an solid air tight exhaust system it will work fine Im sure :)
@@alexhellenbach8820 I’ve done quite a few sniper installs, you learn a lot along the way. The sniper 2 kit is much much easier than the original. The instructions are very clear and the power distribution module makes things painless. I’d say Holley listened to their customers when designing this kit, it’s so easy to do and doesn’t require anything crazy to accomplish, even a Mustang owner could do it 🤣
@@2HacksGarage less than 1000 miles, leaking because the O rings were crap. How hard is it to source decent O rings? I had it fixed by a mechanic who sourced known good O rings. I also didn’t have to wait the 2 months and unknown cost for Holley to sort it out. Holley has a one year warranty only usable by the original purchaser. In a restomod, you rarely have the vehicle on the road before that “warranty” runs out. Why is the warranty not transferable?
Not worth the $1750 paid for the unit. Could have bought a nice carb for half the price with not as much trouble. It seems that you have a problem no matter if the part is defective they make it your fault and you end up paying more for it.
Fuel injection..for those who don't know how to work on carbs..carbs are simple,reliable, and make more power..and I'm sorry but this video sounded more like an advertisement than anything
Everyone has their own ways of doing things. I do both, carbs and fuel injection. Just depends on the application and what the goals are. This car is a driver, fuel injection makes sense. My tunnel ran 521 ford, I went with carbs. To each their own 🏁
Sayiying "for those who dont know to work on carbs" and then "carbs are simple" just says that you dont know how to work on fuel injection and are afraid of electrics. Fuel injection is much more reliable and correct choise for 99% of road cars.
Fuel lines plumbed to the throttle body are not dual feed. One is supply and one is return to tank. Throttle body has an internal passage to move fuel to front and rear set of injectors.
Awesome video JEFF. Thanks for sharing. Keep the content coming. Hope you have an incredible weekend
Thanks man!!! I hope you have a great weekend too!
Had to use 20kOhm plugwires 2 workaround nonexistent shielding/emi protection on sniper 1. Watchout and be prepared for EMI due to poor electrotechnical design on any aftermarket EFI close to hi power AC sources. Hope this helps anyone in need.
Zero issues with this
Thank you for the video was very helpful... Coming from a dinosaur of car performance wiring is the nightmare to me and not too bad here. Thanks
You can do it! not a problem, glad we could help!
Any videos on early c3 Corvettes?
@@bioeddiefpv6265 not yet!
With their HyperSpark set up, can you add and take timing out via the screen or do you still need to do that the old school way?
set the timing the old school way and then set the targeted timing on the screen
@@2HacksGarage so once you set the initial timing via the distributor, you're able to adjust timing via the screen?
@@ItzTheDay for overall timing, yes
@@2HacksGarage awesome, thanks. I'm going to the sniper 2 soon. Just wasn't sure what the benefit was switching out to the Hyperspark. Currently running DUI HEI crossfire distributor. Love how clean it looks with 1 3 5 7 and 2 4 6 8 all on the same side. No crossing wires.
Awesome video thank you very much for all the details
No problem!! Glad you enjoyed it, thank you 🙏
Love the quick response no hesitate #snappy , definitely worth it 😊
It really is! Thanks brother 🏁
EFI or LS, I don't know what to do. I love my 454 but hate dealing with carbs, I want to be able to drive it with no worries, better MPG etc. Choices, choices..... Most people I know who did the efi upgrade love it but still decided to upgrade to LS and they like it better.
Honestly, I’m a bit old school but prefer drivability. I have nothing against the LS platforms, they are awesome and affordable. That being said, I prefer a classic V8 and Holley Sniper. You can’t go wrong with either, Holley makes many great upgrades for both classic and modern engines.
If your 454 is built and has significant horsepower, stay with it. If it's less horsepower than stock 5.3 ls motors, swap it.
12:52 WHOA!!!! epici! .. I did not know the fuel was injected in a circle like that on every "barrel" (I am just getting back into hotroading as I'm retired, everything used carburetors back then)
The fuel rains down like one of those face expensive showers, you see on home renovation shows!!! LOL
Oh man, it is wild! This system works very well for sure!
Curious if you did a mpg compare. Im trying to get better all around mpg from my 396 stock motor. Thinking the Edelbrock pro flo efi may get better mpg results. Any input would be appreciated..thanks for the video
We did not do that. But the system is designed to be efficient and provide the fuel needed to make power. I can tell you this though, it’s a massive improvement on fuel consumption and drive ability
@@2HacksGarage thanks for taking time out to respond! Much appreciated.
2:27 With my age and eyesight?? I find the PDF online to be much better for reading ..... just click the PLUS SIGN a few times make the words size you want!!
I've read over the instructions on line 5 times, but will load them into my old iPad when we start bolting it in!!
Can't wait to install the sniper 2, holley fuel regulator, and original CAT fuel filter set up!!... hopefully next week! :)
It's pretty awesome Holley provides multiple ways to view the instructions. The install is pretty smooth, you'll have no problem with it! Good luck my friend!
3:59 ... The Holley Power Distribution Model is BOSS .. I could not get one short notice but I WILL upgrade to it some time in the future, .... maybe if I get the Holley Hypersark system when I do. :)
8:39 :)
I JUST put a brand new distributor in a few months ago ...so i'm gong to keep using it for a year or so. :)
That PDM is a game changer, makes things a breeze!
On the Sniper 2,
There are two Adjustments screws with green springs around them.
I really want to know what each screw adjusts?
Like the front one (towards the front of the turck) adjusts _____ ?
And the rear most one is for adjusting the _____________________?
Front (toward the front of the truck) or BACK. "With the vehicle in neutral, adjust *the idle screw on the primary shaft* until the IAC Position reads between 2% and 10%. While adjusting *the throttle plate screw*, watch the TPS value."
3:18 ... EVERY install of Sniper 2 I've seen on UA-cam uses an inline pun ... I REALLY recommend an in-tank pump, they run super COLD dipped in gas all day long! :) ..
13:13
I like the looks of Holleys intank stuff, but I really don't want to hole saw my old gas tank .. maybe when I get a new tank someday I'll swap up to Holey's pump.
For now I have purchased a decent "OEM replacement" rated pump by Quantum. .. it's small enough to fit in the stock hole, and on the stock fuel pump support .... and still keep my old fuel gauge! :)
the in tank pump is really good! That being said, we chose the one that came with the kit. The pump that comes with Sniper 2 kit is an upgrade and works really really well!
Sweet set up. 👍
It is!! Pretty straightforward on installation too.
Why did you add the O2 sensor bung? It looks like there is one already in the header.
Put it in a better spot past the collector per the directions
I have a question I can't seem to get an answer too I have an Oil Pressure cut off for my Fuel pump will this cause issues when I install my Sniper 2 ?
How is it currently wired?
@2HacksGarage I'm waiting for the Sniper 2 but as it is now the fuel pump won't pump unless there is oil pressure in the motor.. it's a fire safety thing
Any reason you didn’t put the O2 sensor in the bung on the header?
It needs to be positioned a certain distance from the collector
@@2HacksGarage That's what I assumed, but wanted to make sure.
Battery voltage reading continued to climb to 13.7 with the vehicle off at 11:10 do you know why it would do that
there was a battery charger on it
? I notice that there is only one o2 senser which sounds good if you are running a single exhaust, but in a dual exhaust system there is only one bank of cylinders being monitored. would it not be better to have an o2 senser for each bank in a dual exhaust system.
The sniper system supports one o2 sensor that can if needed be, used on either bank.
@@2HacksGarage: still only reading just the one side of the engine. in a V6, and V8 engines you need two o2 sensors. so why do the aftermarket only do just one? they should design a system with two o2 sensors.
It's unnecessary to run on each bank. System is recording the average on the one bank accurately enough to meter the whole engine. Most 4cyl engines run the O2 in one of the head pipes, so it's only recording 1 cylinder's O2. Remember, all cylinders are going to be roughly the exact same as long as everything is mechanically sound.
@@007freakazoid; on a I4, or a I6 engine that would be great. on a V6, or V8 with dual exhaust no. one o2 sensor will only monitor one side of the engine. I prefer to have two o2 sensors to monitor both banks.
@MichaelBrown-yp1eq you can still install a standalone dual bank o2 setup to monitor things, I did that on my car
😎👍
🤘🏻🏁🤘🏻🏁🤘🏻
Probably cheaper to get a good carburetor and run it, and would be closer to half the cost. I'm going to have to watch and see.
Very true and we went the same route... In the end on the sniper 2 kit came out and was compatible with the dual plane It was actually worth the reliability tuning ease and fuel mileage and comparable performance. Coming from a dinosaur who does not enjoy any electronics on vehicles hardly, this is my personal opinion. The carburetor is much cheaper though especially if you're good with minor tuning And just looking for solid performance probably better.
I have $3600 tied in a 2x4 sniper 1 system -pump hoses etc. now I need $950-1250 professional tune. Not happy not doing it. Two AED carbs on the way. 👺
How u like it got a Chevy truck might put one then on it
Absolutely love it!!! Affordable and easy to install
Think this 87 Chevy truck needs one our plans is to put 383 in it
@@autosalvage I'm looking for same set up. 373 from Smeding with Sniper 2, on my 85 GM stepside. Just curious on fuel system delivery. Still want two tanks. I'm sure there's a way. Good luck. Ol' trucks rule :-)
My friend just put one on his truck with a 440 and he keeps loosing fuel pressure.
What’s his fuel pressure regulator set at?
🦈
🐿️🐿️
5:04 .. The O2 sensor is too far from the engine in my opinion Holle recontends to put it within 8 r 0 inches of the header collector (down wind of course) ...
BUT?? In your case with the Cat right there, providing some back pressure, and an solid air tight exhaust system it will work fine Im sure :)
oh it works great! In this case, we had to put it where it made sense and also kept in mind the instructions
Good morning and, I believe that it will work good except for it will have to relearn everything everytime you start it up.
Good morning! It does a good job of learning and it is snappy on the throttle
@@2HacksGarage I will have to stay tuned to see if you like it or not.
good stuff. gorgeous car. sub'd to see more.
Thanks for the sub! Thank you 🏁🏁🏁
Just say you're sponsored man.
I’m not paid by anyone
@@2HacksGarage you make it sound that way. Surely there are cons and surely things didn't go that smooth and there was cussing. There always is.
@@alexhellenbach8820 I’ve done quite a few sniper installs, you learn a lot along the way. The sniper 2 kit is much much easier than the original. The instructions are very clear and the power distribution module makes things painless. I’d say Holley listened to their customers when designing this kit, it’s so easy to do and doesn’t require anything crazy to accomplish, even a Mustang owner could do it 🤣
But was it easy?
Yes it was. The instructions, diagrams, and online resources made it a breeze.
I have a sniper 2 and it is garbage. “Not field serviceable” per Holley. They leak. Just junk.
Before you say that, what problems were you having?
@@2HacksGarage less than 1000 miles, leaking because the O rings were crap. How hard is it to source decent O rings? I had it fixed by a mechanic who sourced known good O rings. I also didn’t have to wait the 2 months and unknown cost for Holley to sort it out. Holley has a one year warranty only usable by the original purchaser. In a restomod, you rarely have the vehicle on the road before that “warranty” runs out. Why is the warranty not transferable?
Not worth the $1750 paid for the unit. Could have bought a nice carb for half the price with not as much trouble. It seems that you have a problem no matter if the part is defective they make it your fault and you end up paying more for it.
I’ve installed many without issues, some troubleshooting here and there but nothing hard
Fuel injection..for those who don't know how to work on carbs..carbs are simple,reliable, and make more power..and I'm sorry but this video sounded more like an advertisement than anything
Everyone has their own ways of doing things. I do both, carbs and fuel injection. Just depends on the application and what the goals are. This car is a driver, fuel injection makes sense. My tunnel ran 521 ford, I went with carbs. To each their own 🏁
It’s also nice to know how to work on both, best of both worlds 🏁
Sayiying "for those who dont know to work on carbs" and then "carbs are simple" just says that you dont know how to work on fuel injection and are afraid of electrics. Fuel injection is much more reliable and correct choise for 99% of road cars.
@@2HacksGarage imagine doing a tunnel ram with one carb and one efi or a tunnel ram with a sniper 1 and a sniper 2
@@joraybeast2460 would be fun!!
That is not a real SS car.
Doesn’t change the cool factor of the car in the least bit
Neither is my 67 Camaro. But it's tubbed, on air bags, caged, and running a 454 with an 8-71 blower. So I won't apologize for the SS badges on it 😎
@@lowlyfe2497 🏁🏁🏁🤘🏻🤘🏻🤘🏻