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carb help
just bought a holley 750 ultra for our 421 it came with 76 jets in front and rear i put in it what was in our other carb which was 78 in prim and 80 in sec.when i rev the engine it studders a little before picking up just wondering if anyone knows if i am close on jets and will jets cause this problem.
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Does it have power valves?
With a pv I would go back to stock jetting from holley for a baseline
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Go back to stock jets to start from. There is alot more to fuel curve than just the jets. Air bleeds. Power valves. Etc
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Sounds like the squirters are too big too.