Zenith Carb problems

[coffinator]

I have a 34pic on a 1898 with stock heads and an empi GT exhaust in a myers manx sr2. My probles is it hesitates for a while when I give it gas, and when I am trying to hold it at about 2,500 rpms it starts to lose rpm. It also shoots gas out of the carb when i try to give it gas ay higher rpms. After I shut it off it starts to leak alot of evaporated gas out of the carb. It might be smoke but I dought it. Mabey I need a different carb.

Any help or comments would be appreciated.

Mike,