I just when to the track last friday. It was my Mach 1 with my mods in sig; an 03 GT with 3.73's, full exhaust, pullies,CAI, preditor; 05 GT with CAI, preditor, pullies, and a bone stock 03 Mach 1. This is at 4100' elevation. My best was 13.5 on et streets, 03 GT 14.3, 05 GT 14.3, stock Mach...