Hey guys got a weber on my 2.0 and did an electric fuel pump with manual regulator set on 3.5psi to the carb and it oftens starves for fuel. My setup is very very simple and im thinking that might be the main problem. Literally have one line from gas tank to electric fuel pump to carb. No returns, no venting. Is that a must have? I do have the extra lines off the tank (factory tank) capped off.