Thread: Vacuum reading on 2000 GTP

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  1. #1 Vacuum reading on 2000 GTP 
    GT Level Member K Kraziee's Avatar
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    I tried searching, but can't find a clear answer. What should vacuum read at idle?
    DD: 2000 Pontiac Grand Prix GTP

    3.5 ZZP MPS, HAI, ZZP Ported Throttle Body, PLOG, 3" Catless DP, Water pump and Alt. UD Pulley, Custom Tune
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  2. #2 Re: Vacuum reading on 2000 GTP 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    -19 to -20 in/hgs.

    SMGPFC Member #1
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