Thanks Jonny and MescaBug. No, the heads are bone stock but with new Ferrea stainless steel valves and Comp Cam springs, retainers and locks. They even have the 45 degree seats.
My stock 11 to 1 RAIV dyno'd at 455 hp at 495 lbft torque, so am assuming a RAIII with the same compression as the IV would be 420 hp and 475 lbft range.
Dennis
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