Hello i have a boosted FSZE on my Mazdaspeed protege, i used everything from the old fsde engine and put it on the ze including the intake manifold, not the box one. Im running on 7psi of boost. the car runs absolutely great with a leaking turbo. My plan is to put 440cc injectors, slap on a gt2860, fmic, and a haltech standalone ecu. i dont mind running low boost cause the engine is high compression. But the real question is how much hp can i make with that engine without touching the boost or internals?? I might push it to 8psi as well but it all depends on what you guys tell me.