1 example of many REAL WORLD examples:
Completely stock 1969 Ram Air IV 370HP rated, stock convertor TH400 4.10 gears 13.4xx best over a 3 year period. Afraid of hurting the rare engine installed a completely stock 1971 455HO rated at 335HP 8.4:1 compression vs. 10.75:1, Ram Air III AT cam vs. Ram AIr IV cam. 12.8xx best.
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1989 Automotive Hall of Fame Inductee
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