The file i send you, its has NO fuel adjusment at all, just idle and timming you have to do the fuel, and it uses the same delphi maf same as a 5.3 LM7 Ls engine, calibrated diferently (Stock) for the 5.7 liter air flow, unplug the Maf soo it convert to MAP and see how it work, (you need to adjust fueling regarles).