The MAP "HG is reading 10-12 " at idle and 16-17" in drive... Is this in tolerance?
2000 Pontiac Grand Prix GTP: Black on Black, all stock
1987 Buick Grand National: 3.8L stock block, Billet Main Caps/ARP studs, GT6776E, 3400 Stall, 55lb injectors, LT1 MAF-Translator, Turbo Tweak chip: 516 FT-LB torque, 16# boost-93 oct