X2 on the fuel well leaking. Also, check that the base plate screws, two or three underneath and the two back airhorn (top) screws are snug. Not over-tight, just good and snug.
I would also check for proper float height and that you're not pushing too much fuel pressure from the pump. While you're in there, make sure the needle hanger isn't hanging through one of the float bracket holes. It should just hang from the middle flat of the bracket.
Lastly, is the mating surface on the intake good and flat? Check with a known-good straight edge.
Good luck.
