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Old 09-12-2011, 12:52 PM
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Bog or Starving?

I need help with my carb, I have a 350 chevy with no real internal work done to it. Headers, 2 1/2 straight pipes exhaust, aluminum edelbrock intake, a distributor kit, and a 650 proform carb. It runs great until you put the pedal to the floor, then it seems to backfire and bog down is that too much gas or is it not getting enough and is starving for it. I'm a rookie help me. I don't know how to tune it.
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Old 09-12-2011, 01:18 PM
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im no expert but check the float levels. and i found that if u can set one of your mirrors to see the exhaust and check if it blows black smoke when it boggs. if u see smoke then its to rich. if not tho, dont mean its lean, just u cant see it. just a tip. and dose the bog stay or just for a moment? is it just a bog or dose it cut out then bog? these are all questions that will help other ppl (who know these carbs) figure it out. and best of luck
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Old 09-12-2011, 01:24 PM
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Check the accelerator pump adjustment to be sure the pump arm is in contact w/the linkage and that you get an immediate stream of gas from the shooter as soon as the secondaries begin to open. Also be sure there's about 0.015" clearance at WOT so the diaphragm isn't damaged.

What size shooter and what color cam are you using on the secondary side?
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