scott, have you seen this though? 7psi and 267 to the wheels ....autxr said:300, 400, 500, how much money do you have, how much horsepower do you want?
All things being equal, 14 psi of boost on a stock engine (no other mods) means you doubled the air going in, so you double the fuel and double the power (it isn't quite that simple, but close enough).
So, run 14 psi of boost on a GTS and you will be making 260 horsepower.
Of course, the engine will blow up...