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Thread: LS1 Stock Fuel Pressure Regulator

  1. #1

    LS1 Stock Fuel Pressure Regulator

    Another quick question.
    With my fuel system on my LS1 I'm running 80lbs/hr injectors in a billit fuel rail with a 400lph Walbro intank fuel pump.
    Is it ok to continue using the factory fuel pressure regulator and returnless fuel rail setup ?

    Or would you recommend running a return line back into the fuel tank and run a rising rate fuel pressure regulator mounted in the engine bay ?

  2. #2
    Junior Member SHOW GUEST
    Join Date
    Mar 2014
    What kind of car is this in (make/model/year)?

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