Fuel reg questions, using LS1 fuel tank with a 5.3
04-01-2012, 02:11 PM
#1
Fuel reg questions, using LS1 fuel tank with a 5.3 I have a 2000 5.3 engine along with a factory LS1 fuel tank setup. I hooked up the return on the truck intake and started the engine and no fuel is coming out of it. Is this because the truck has its own reg on the fuel rails? I know the Ls1 tank has the reg inside. So seems like I have an issue running two regs since no fuel is returning from the intake. It runs fine but I am just confused on what to do.
