Holley Carb Tuning help on a 4412


Well-Known Member
Oct 17, 2018
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St paul
So I got the idle nice and smoothed out, I think you were right with my curb idle being a bit too high and those small slots being exposed. I'm idling at about 950 now in P/N and around 650 in D that's with no high beams or lights on. I replaced the squirter with a 63 and I still get that stall from a dead stop when I punch ibut it seems to be coming out of a smidge bit. I'm wondering if I should play around with some pump cams to see if I can get a bigger shot in there.
Some times, a heavier car needs a Longer shot. Try the cam that does that, and see if it helps