GMPP Crate Big Block Info Needed - NCRS Discussion Boards

GMPP Crate Big Block Info Needed

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  • Joe L.
    Beyond Control Poster
    • February 1, 1988
    • 43203
    #1

    GMPP Crate Big Block Info Needed

    Has anyone here ever installed a GMPP crate big block engine assembly in any vehicle, Corvette or otherwise? I'm interested in the idle vacuum reading that the engine generated. I'm interested in any/all of the following:

    GM #12568774-----454 HO

    GM #12498777-----ZZ454

    GM #12568778-----502 HO

    GM #12496963-----ZZ502

    GM #12496962-----ZZ502-Deluxe

    GM #12499121-----Ram Jet 502
    In Appreciation of John Hinckley
    Tags: None
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    • John Walker
      #2
      Re: GMPP Crate Big Block Info Needed

      Joe; I installed a 454HO im my wife's 1973 Corvette. I will have to look for my notes though, I will try to find the vacuum reading as soon as I can and will post it for you. John P.S. it's a wonderful set-up.
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