2003 Mach 1 in signature has no intake or exhaust mods - factory 4-catalysts and mufflers - stock engine, obviously. Moser C-clip axles, 4.30s, fresh traction-Lock, ET Streets (bias, of course), M&H front skinnies on light wheels. Pro 5.0m shifter, SLP line-lock, and a stand-alone shift light. 6000 or 6400 shift points, 12.57 backed up by a couple of 12.64s in October air. Car weight (with me, across the scales) in the low 3400s.
You can do a lot of business just optimizing the car for the strip.....and drpaul, you must be spinning downtrack as well - true?