basically i have a stage 4 charger, 65mm tooth pulley kit, schrick camshaft, running a ppp chip, gas flowed head with 1mm larger valves, De-wedged throttle body, 4 branch manifold, fmic. ive currently got problems including a fooked injector, is it time to upgrade to 250cc injectors and map? will i get a gain from this or are the standard injectors ok? cheers