Quote:
Originally Posted by BaylorCamaro
I would highly suggest not doing any pulley upgrade until you get injectors. With just a Roto-Fab intake, polished TB & Headers my duty cycle was around 86% I swapped out to ID850's before I did my upper.
If you run a different pulley (upper or lower) you're on borrowed time IMO.
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Bone stock my car was at 93% duty cylcle. At 6200 rpm. Did you take yours to redline when you checked.