i took my exhaust manifold off so i can change turbo and while it was off i noticed that my exhaust valves are white (i dont konw if there is something on them or they just changed color) oh btw they are stock valves. anyone have an idea of what it is and what caused it?

 

yeah, its running lean man. up the fuel pressure or get bigger injectors. do you have a fuel pressure riser? what ecu?? more info

 

Yup running lean

 

i know my car was running lean when i first put on my turbo, but now its running at 12:1 a/f @ WOT. so it could have happend when i first put on the kit. and as long as it gets me through this year thats all i really care about, im gonna build it next winter.