I just upgraded a 99 Trans Am LS1 in another car on a budget. I did CNC ported 243 heads, EPS baby 222/226 cam 114 cam, LS6 intake manifold, Kooks headers and True Dual exhaust and the car made 424 rwhp/412 rwtq.
I would really get Patrick G or Geoff at Engine Power Systems to spec you a cam once you select the other parts.
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