This is a fresh built .030 440 with Eddy heads, a M1 intake and 750 Speed Demon.
I am trying to get my motor running for the first time. I keep having problems with cylinders 1 and 3 flooding with gas. The motor will fire and run maybe 20 seconds, then slow down and quit. It might fire again and sputter and no start. I pull the plugs and turn it over and gas will squirt out of 1 and 3.
What would cause the carb to give excess fuel to those two cylinders? I am not using the choke and I am not reefing it. I am using an electric fuel pump and the gauge says about 4 to 5 psi. The fuel is level in both float bowls.

P.S. First, I thought the head gasket was leaking water into the cylinder---I re-torqued the heads, and it still flooded-- I held a cup up to the #1 spark plug hole and it put maybe two ounces of gas with no water into the cup.

Any ideas are greatly appreciated.