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Thread: Holley 12-302 '64-'67 in-tank fuel pump.

  1. #1
    Join Date
    Jun 2013
    Location
    Calgary, Alberta
    Posts
    112

    Default Holley 12-302 '64-'67 in-tank fuel pump.

    I've been running a Terminator EFI on my LS engine, but I'm switching over to MPFI using the Weiand LS1 intake. I picked up the new in-tank pump setup, which is internally regulated at 58 psi. With the MPFI using 43 psi, is it just a matter of changing the pressure settings in the HP ECU to 58 psi, and let the ECU handle everything or ?

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    18,886

    Default

    Yes, verify 58 psi and enter that in Actual System Pressure (Engine Parameters).
    http://forums.holley.com/showthread....ents-Read-This (Initial Checks & Adjustments - Read Step #2)
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  3. #3
    Join Date
    Jun 2013
    Location
    Calgary, Alberta
    Posts
    112

    Default

    Awesome! Thanks Danny!

  4. #4
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    18,886

    Default

    You're welcome. Think of the EFI ECU & fuel pressure regulator as a 'matched set'. They both have to be set to the same psi.
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

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