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  1. Note About: E2567/Equivalence Ratio Limit

    I know this is an old platform but some old threads asked about EQ ratios, quick note... the label for the limiters description appears to be backwards. Diesel EQ is richer with a lower number, .625...
  2. Looking for some files for Duramax and Cummins trucks for track use

    First post, Hi everyone!

    At my private shop I mainly work on pre-emissions street trucks but I have a few friends retiring their newer daily drivers for track vehicles when we all go racing...
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