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  1. H1 Hummer 4BT ppump/AFC/fuel plate tuning help (posted conversion pics too)

    Performance Discussion
    Thanks to everyone for the tuning advice back in February. Since then, the H1 Hummer has had the following updates: -The conversion shop (Level 7 Motorsports in Marion, IL) buttoned up the inside, hooked up all the AC components, resolved a power steering leak, added a crankcase vent catch...
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