I hope you do know SVOKING that your Mach 1, although aluminum blocked more like a Maurader, your car DOES have 03 Cobra Heads, Cams, crankshaft, and 10:1 Compression, much higher than the Cobra. A good combination for mid to low 13's times. 01 vs. 03 Mach, yes the Mach is quicker 1/4 time wise...