I recently purchased a1970 GTO convertible (not yet delivered) and I want to add Ram Air III. Or I guess it could be RAIV if it made sense. It has a rebuilt 400 and is very stock. First I heard it was about making the hood scoops functional, but then I hear I need to change heads, the rear end, carb., manifold, headers, radiator, etc. Has anyone done this that can offer ideas, sources, costs? BTW, I live in Denver (thin air) which may also be a factor. Yes, I am new to the forum, and appreciate the guidance.