Ok I got the car on Friday! YES!

Umm ok there where a few things that where not all there. I did not get 450cc injectors. I have some stock prelude injectors. I think there normal ls, gsr injectors. I have a stock p28 ecu. Tell me guys where do I go from here? I hooked up the boost gauge and it shows me 8psi tops. The car lets me boost a bit but sputters hard at around 5+ rpm. HELP