keep it under .500 lift total at the valve. if you can find an aftermarket cam with similar duration and lsa to a stock 85 350/305 TPI cam that would probably keep it running the best with a stock ecm. save for a 24x swap. id really be interested in seeing how a tuned port motor runs with that setup on it.
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1999 Z28 T-Top M6 - LS6, Bolt Ons, Suspension, MWC Narrowed 9" - 415rwhp 385rwtq 10.847 @ 125.17
1989 IROC-Z H/T M5
2006 F350 SCSB 4x4 6.0L Diesel - Studs, EGR Delete, Powermax Turbo, Extreme Tuning & Exhaust - 13.23 @ 101
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