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Thread: NEED ADVISE: Fuel Pressure

  1. #1
    Junior SCH Member
    Join Date
    Jul 2004
    Location
    Massachussetts
    Posts
    45

    NEED ADVISE: Fuel Pressure

    What should I have my fuel pressure at?
    I have: Stock shortblock and cam, Edelbrock Performer Upper & Lower, GT-40 Iron heads, 75mm MAF, 24lb injectors, Paxton FMU - not sure on the calibration, Equal length shorties, Off road H pipe, 65mm T.B., F-150 Pulley.
    It is making 8lbs of boost.

  2. #2
    Senior SCH Member Chuck's Avatar
    Join Date
    Oct 2002
    Location
    Canada
    Posts
    614
    Is it the FMU that came with the kit?

    If so I believe its 12:1. Set your pressure to 40 psi vaccuum off. If it seems a little rich you could take some out.
    1993 notch, 357W forged pistons 9.2-1 comp,Vortech S-trim 3" / 8" pullies, AFR 185 heads, Trick Flow R intake, Anderson B451 cam, PMAS 80mm, 06 PMS, 60# injectors, 3.55 gears and PA SC C4, Dual Walbro fuel system. Best ET 10.35 @ 135mph

  3. #3
    Junior SCH Member
    Join Date
    Jul 2004
    Location
    Massachussetts
    Posts
    45
    Ya, it's the FMU that came with the kit, but I'm not sure if the previous owner changed discs or anything.

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