I thought Dave was doing a chip for you? He knows what Vortec head spark needs are, POOF your done. Then apply your techniques and learn to fine tune.
I thought Dave was doing a chip for you? He knows what Vortec head spark needs are, POOF your done. Then apply your techniques and learn to fine tune.
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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