with 740cc nisstune upgraded intercooler 2.5 Downpipes T Pipes 5 speed sport 500 turbos at 18 psi 87.5 piston / H beam rods heads have been shaved once maybe twiceat dyno tuning, tunner said he I needed cooper plugs im useing the stock tt plugs well something wasent wright during tuning 380hp and 400 tq, at 18psi , timing was maxed out I stop the tuning process bc i think the 555cc injector were cloged or i was told wrong about what injector i have ( I installed 3 new 555 and mabe the other 3 were 370cc. thanks for any input
 "> |