WCFB fuel pressures - NCRS Discussion Boards

WCFB fuel pressures

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  • David B.
    Very Frequent User
    • July 31, 2004
    • 330

    WCFB fuel pressures

    I am considering mounting my 2X4 WCFB setup (2626S/2627S) on the 350 that I run in my '57. (The 283 block is put away for safekeeping.) I have seen info that the WCFB's should not have a fuel pressure exceeding about 4.5 psi to operate properly. My question is (1) anyone have experience running this setup with a stock 70's era fuel pump? (2) anyone know if I can mount a 57 fuel pump on the 350 to achieve a proper fuel pressure? (3) any other things to watch for?

    Thanks
    David B.
    Dave, 1969 427, 1957
    Previous: 1968 427, 1973 454
  • James F.
    Very Frequent User
    • December 1, 1985
    • 596

    #2
    Re: WCFB fuel pressures-David

    David, IMO volume is as imprtant aspressure, maybe more so. My '56 2X4 engine. fuel pump can't supply over 3.7 pounds pressue, yet car does fine on the interstate @ 56oo RPM. Your 3/8" D fuel lines are larger than the '56's 5/16"D.That's in your favor. Try your system first, don't think you'll have anything to worry aoutwith a 70's era fuel pump meeting the specs as staten in the ST-12. Regards

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    • David B.
      Very Frequent User
      • July 31, 2004
      • 330

      #3
      Re: WCFB fuel pressures-David

      Thank you Jim.
      Dave, 1969 427, 1957
      Previous: 1968 427, 1973 454

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