Leaking gas out of the overflow tube? The float needle isn’t seated. No matter how good you clean it, it seems there is always some loose dirt floating around and it gets stuck in the float needle seat and causes it to leak. The only answer is to take the float bowl off and make sure that area is clean again.
Or that needle seat tends to crack with age and needs to be replaced. Its basically an o-ring and dries up if it’s old or has harsh cleaners used on it. If it looks clean but still leaks, replace the seat and the float needle.
94mm bbk, +4 stroker, Hot Cams, Vertex piston, FMF Power Bomb header and Power Core can, KW black diamond valves/dual springs, FCR39, K&N, Elka long-travel LT fronts and rear, Houser +3, +3/4 LT A-arms, American Star pro xs chromoly tie rods, Dyna non-programable, Tusk +3 axle.