On a stock motor you can safely run 8 psi or so on pumpgas with an intercooler. You can do a twin setup for about $6k or less. 650 hp at the crank is a good safe power level on the stock motor.
Look up my car for a good place to start, that will show you the basics of what you will need.
When you blow your engine, you will just have to build another with forged rods and pistons.
