Depending on how radical you get with compression and camming, 300-400 rwhp is pretty easy. If money is at all something you're taking into consideration then you might want to look at getting a Mustang with a 5.0 in it. There is no other performance aftermarket bigger than the one for 5.0's. I learned everything that I know now about Mustangs from reading "Muscle Mustangs and Fast Fords" and 5.0 Mustangs and Super Fords" magazines. Just pick those 2 up and read them from cover to cover and you'll learn everything you need to know. And a turbo is the only way to go if you really want to go fast. I have a stock motor in my car and when all is said an done it should be running mid to low 10's once I get the rest of the car setup to handle the insane amount of power I'm making. Good luck.

Briane