Edelbrock mpfi

[ls1 nova]

Just installed the kit, fuel lines, and pump. I now have to turn the key and wait for the line to pressurize before I can start it. Am I missing a check valve. I thought it was in the pump? Am i wrong. Is this hurting performance?

[camcojb]

Just installed the kit, fuel lines, and pump. I now have to turn the key and wait for the line to pressurize before I can start it. Am I missing a check valve. I thought it was in the pump? Am i wrong. Is this hurting performance?

that is normal.

Jody

[Twentyover]

This also happens on production car systems. It really depends on how well sealed the check valve and regulator are. All systems will bleeed pressure over time, just a matter of scale.

On my system, I just start cranking. By the time the engine is spinning, the fuel rail is near enough to opertaing pressure I usually fire