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Can we get some more info on your engine combo, and what Holley you have, list number etc?
I have run a 4779 750 dp on many engines smaller than yours, with 30cc pumps on both sides.
If you need to run 50cc pumps, then I would say there are other calibration issues that you are trying to cover up with excessive pump shot.
Troy Patterson from TMP carbs is one of many tuners who aims to get the other circuits to interact better and rely less on accelerator pump volume.
I prefer to run annular booster carbs on the street.
Gary
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