I have a 355 sbc with 72s in the primaries and 82s in the secondary's and I'm running a 5.5 power valve the AFR is pretty good at idle but a mid throttle is a little rich around 11-10 on the AFR what should I adjust the power valve or jet down the secondary's and its a tad bit rich a full throttle any preferences?
@@bandmoutdoors669 mid and full throttle you’re mostly on the main jets. You can jet those down. I like my motors to be a little on the rich side because i also have nitrous so doesn’t hurt to have it a little rich.
@@ratcamaro that's true might go down another from 72 before I had it at 75 and I might also might down jet the secondary's a little bit and might put in a 4.5 power valve thanks for the advice
@@bandmoutdoors669 Also keep in mind that the power valve enrichment is roughly 6 jet sizes which is why i jet mine 79 pri & 85 sec. When throttle is wide open jetting is 85 85 in theory. Works for me but every motor is different. Good luck!
Sounds like you have it dialed in pretty good. What size are the idle air bleeds?
Thanks. The air bleeds are the ones that came with the carb stock. Not sure off hand what size.
2 out on all 4 corners for a big block dodge 440 as well?
@@dereckp3634 Every engine is different
I have this same Demon carb and would like to know if it’s possible to swap to annular discharge boosters?
You would have to contact Holley to answer that question.
I’m looking at going from my Holley to the demon . Does the demon have inlet filters like the Holley ? Filters at the bowl inlets .
I had to watch the video again. No filters in the bowl fittings on this one.
I have a 355 sbc with 72s in the primaries and 82s in the secondary's and I'm running a 5.5 power valve the AFR is pretty good at idle but a mid throttle is a little rich around 11-10 on the AFR what should I adjust the power valve or jet down the secondary's and its a tad bit rich a full throttle any preferences?
@@bandmoutdoors669 mid and full throttle you’re mostly on the main jets. You can jet those down. I like my motors to be a little on the rich side because i also have nitrous so doesn’t hurt to have it a little rich.
@@ratcamaro that's true might go down another from 72 before I had it at 75 and I might also might down jet the secondary's a little bit and might put in a 4.5 power valve thanks for the advice
@@bandmoutdoors669 Also keep in mind that the power valve enrichment is roughly 6 jet sizes which is why i jet mine 79 pri & 85 sec. When throttle is wide open jetting is 85 85 in theory. Works for me but every motor is different. Good luck!
@@ratcamaro oh I see thanks for the advice once again!
is there anything else I should take into consideration ?
Why so large on the jets for a 750?
That’s what works for me. I also run it on a 125 shot of nitrous and the engine likes that jetting.
Where did u get the fuel line from?
Summit Racing. It’s a Demon inlet line kit.