i have on3 kit with 76mm ball bearing turbo on my 97 cobra. i have a aeromotive stealth 340 in tank pump with 80# injectors. i have been talking to a few tuners and one told me i need to put a t-rex inline pump. what kind of power can i make without the t-rex? if it will cost me alot of power i will get one? it's a stock bottom end so i'm only looking for 8-9# of boost.