Thread: Flooding

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I have an 830 annular boost Holley carb which is spilling fuel out of the left side annular booster at around 2000 rpm with the tranny in neutral. So much so that I went through a half tank of fuel within a 20 mile drive (@ 1.68 per liter) and it runs real crappy.

I replaced the power valve, shot carb cleaner through the mettering block and carb mating area, lowered the needle and seat, and still no good. No fuel is pouring out of the side inspection screw hole when the motor isn't running but the fuel pump is on.

It was running great a few days ago, now this. What might it be? Could the fuel pump suddenly be putting out too much fuel pressure at 2000 rpm?

BTW, I would highly recommend wearing safety glasses when spraying carb cleaner with that tiny tube stuck partially into the channels of the metering block. Don't ask how I know.

Ok, I just replaced the front needle and seat, and the problem remains. The left front booster is spilling fuel into the carb.