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Type: Posts; User: lotsatoys

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  1. 10-18-2014 11:19 AM

    Thread: 350 Chev with FAST EFI

    by lotsatoys
    Replies
    11
    Views
    2,721

    True. if the vacuum is too low with that cam the...

    True. if the vacuum is too low with that cam the ecu thinks the engine in under more load than it actually is, and dumps in more fuel.

    OP. how much manifold vacuum do you have at idle and cruise...
  2. 10-16-2014 07:28 PM

    Thread: 350 Chev with FAST EFI

    by lotsatoys
    Replies
    11
    Views
    2,721

    Not familiar with the Fast system in particular,...

    Not familiar with the Fast system in particular, but with other brands that I've used you still need to tell the system what A/F ratio you want to see under 4-5 load conditions. it will self tune...
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