5.0Flareside
GingaNinja
Oh.. it needs a camshaft alright
You wouldn't believe how much of a difference this one simple change makes, and your truck is all setup for it with 4.10 gears. That should be a roller motor as well so you only need the cam.. which would be the Comp 35-512-8 if I were suggesting. This is a hugh jump over stock but it's still not that radical in the big scheme of things and won't upset the EFI system, so the truck should run like stock except that it'll make a ton more HP.
I'm gonna hold off on a cam till I put another 302 together for it