oh and it's turbo and is running 10psi and a D4s computer what size injectors would be suitable? i think it's overfueling or can i crank the timing right up to compensate, is currently running about 19-20 degrees btdc and isn't pinging? that i can hear anyway.... i have no idea what the internals are all i know is that it's got an arp stud kit and nismo head gasket.