[442w30]

You are incorrect about the 400HO/RAIII for the GTO. In 1969, the 400HO was only available with Ram Air, hence the Ram Air 400 or RAIII. NEVER was it available without Ram Air.

Also, to clarify, the first Ram Air engine to receive a number designation was the RAII. The first Ram Air to receive decals were the 1969s.