does a 4.6 on a 97 mustang and ford f150 the same or does the truck engine different cause i am in the process of fixing a friends f150 withthe 4.6 so far we have added a spacer, mac intake, and msd 6al box plus my tune with the sniper tuning software, next up is the longtubes and want to know if it would be alright to put some mustnag pulleys in the truck block what do u guys think? by the way truck ran a 17.3 best time on wed. against a 5.4 fx4 of course my friends truck won and thats with an hedder leak and its a ext.cab think he did good???