Originally Posted by Fast355 The detonation is from the lack of EGR. Good catch Fast! Originally Posted by damanx hmmmm......Ugh...I don't want to have to use the stock intake and egr system.... Turn off EGR...
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42! 1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner! -= =-
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