My only mods are rebuilt motor with forged pistons,an atr cat back,fp reg,walbro 340,jabsco pump with 3/4 heater hose.I'm looking to get a little more out of it.I have a set of 43# inj if needed but my stock ones are brand new.Do I go with a pit bull street chip and how fast can I expect to run? How # of boost will it give me?Do I go with an ultimate chip?What inj.? I dont want to buy another set of inj.