06/12/2026
After 2 failed alternators, a weak fuel pump, junk O2’s, and a tire valve stem that ejected itself, this Mach 1 is finally tuned and out the door! John’s Mach 1 has a D1 Procharger, 4” pulley, some long tubes, 60lb injectors, and a 300lph pump upgrade. Made a respectable 499 Hp and 431 Tq on the 140K mile stock motor.