There is an old saying in performance, " speed costs money, how fast do you want to go? " As previously noted you have lots of options, the only limitation is your budget. One relatively simple option if it's still available is the Ford Performance crate engine part # M-6006-M50A1. This is a Gen II engine designed to run with a Gen I PCM. It comes wit a 24 month factory warranty, but your supercharger will probably void it. Like other Gen II engines it has Boss 302 sinter forged rods [ powered metal AKA pressed sh*% ], but they're still better than your old Gen I rods and hyper pistons. It can be had for just under $7,000.00 if still available. If I were to go this way I would put in billet oil pump gears and a billet crank gear while it was still on the engine stand especially since it will be supercharged. Good luck.