my carburetor is leaking fuel out of the fuel bowl vent & around the top of the fuel bowl. about 2 weeks ago it was leaking the same way, but it quit after i rebuilt the carburetor last weekend. after a few days of driving, it leaks again. any suggestions?
yep, he is likely right, your float is not set right your rebuild kit should have come with a little cardboard guide showing you where to set it, however, you can just pull the lid off for now, and bend it down a little, that should lower the float level a little. careful though, bend it down too much, and it'll stall you out in the middle of a freeway.
I agree. The floats are probably set too high. One other possibility, if you are running too high a fuel pressure, the fuel will run through the needle and seat regardless of the float level. I believe that Holleys operate best at 5-7 PSI. Electric fuel pumps can put out excessive pressure that, in a deadheaded system, force the fuel through the carb, bending the adjustment tab if necessary, until fuel pours out any available opening. The best fix is a pressure regulator set at an appropriate pressure level.