I would recommend doing a centrifugal. Cheaper, shouldn't have to worry about heat soak. They call 'em Heatons for a reason. You won't get the same power down low in the band with a centri, but (and somebody correct me if I'm wrong) you should get better power on the same amount of boost up high because the air is cooler.
'03 Mach 1 5spd
Fully forged Manley rods/pistons, Cobra crank, ARP hardware, 8.5:1, Procharger P1SC w/ intercooler, AFM power pipe, 60# injectors, 03/04 Cobra tank with dual fuel pumps, Kenne Bell Boost-a-Pump, O/R X pipe and Flowmasters, Exedy stage 3 clutch, Steeda Tri-Ax, Front and rear upper + lower control arms, Ford Racing springs, Bob Monks tune 448 rwhp @ 9 PSI