back in the days i heard that u can make the same hp as the cc of the injector. Which mean ud be able to make 450hp. Then later i talked to scotty and he said it may be possible but ud have to jack the fuel pressure way up. I say u should run ur turbo and then get a big turbo and get it tuned to see how much more pwr u can actually make by just switching turbos alone. R & D bitches!!!!!