ive heard but not tested that supercharged 5.4's dont fit under our hoods.. clearence issues. Turbos would have to be rear mounted, no room for them up front. IF i were you, id go with a set of mild high rise cams' + sping + Retainers. Supercharge, and do some 4.10's. your truck would be sitting on a nice healthy 400 ish horses. if you want to go higher than 400, you will need to look at a built transmission, stockers only good to 400 or so. bolt ons wont hurt, but to do them right it will set you back another 3 grand. ALSO, you can invest in a 5.0 stroker kit, or a 5.3 stroked bored short block for another 10 grand... as the first responder said, start by robbing a bank. Trick flow heads would also be a nice touch, i have plans for those still.