Originally Posted by thesource
If the truck has mass air then you can do all the stuff like a mustang , if it is speed density then some stuff won't work worth a crap .
I agree. I ran into that problem with my old 88 cougar 5.0. We had speed density, though many of the 5.0 cougar guys opted for a mass air conversion, then picked up all the HO mustang parts dirt cheap.
If it is speed density, you could always do a conversion
2002 Mineral grey GT 5 speed. Flowmaster 40's catback, Mach 1 grille delete, timing advance, push button starter, Bullitt pedals, FR500 steering wheel, K&N FIPK, Self ported upper intake w/ spacer, Pioneer Avic D3, MGW shifter, MM FL subframe connectors, Mach 1 springs, Bilstein HD struts/springs