Again, you put too much weight on the hood. The engine is the 'meat' of the ram air. You are thinking too literally with 'ram air'. Ram air is an engine option, not a hood option. That's just 611(hood and pans)
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The engine was always the 'meat' of the package. The hood wasn't much performance... The 'ram air' engine was what was HOT.... The old timers always called it 'HOT IRON'.
Ok, there was NO difference in performance, There is NO difference between a 68 HO, 69 HO and a 69 "RAIII" (was there?) other that in 69 the addition of 611 to RPO code 348 to turn a 69 HO into a "RA III". A 69 Firebird with 611 is not a true "Ram Air" car.
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1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.
