How much fuel pressure does a 5.3 LS need?

How much fuel pressure does a 5.3 LS need? Spec for the 5. 3 is 55-62 psi according to the Haynes manual. Fuel Pressure For example a carbureted engine typically requires between 4 to 7 psi whereas a typical GM LS engine runs on about 58 psi. How much fuel pressure does a Ls need? … Continue reading How much fuel pressure does a 5.3 LS need?