Thanks everyone. It ended up being both the float and needle. Everything is taken care of and its running great and receiving a oil change currently..

I'm trying to help my neighbor get his old 55 going. It has a small block with a edelbrock 1406 600 cfm carb. I can get the car to run and keep going as long as I hit the gas, but it won't idle or run at a steady rpm. I'm guessing there is a float issue or something like that but I'm only really familiar with the holley's so I'm not to sure where to start. The car has been sitting for 2 years but has fresh gas. It also seems to be puking some gas from the top of the carb.

Any idears?

Thanks!
-Jon