I was asking the RAIV for a friend. His 69 GTO had a RAIV engine when he got it. The car was a Jan 69 car. The original engine is long gone as they raced it. He does still have the round port heads. And the car had RAIV decals on it when he bought it. Again more information than we had. The car was Bad A$$ in its day. He has pictures with at least one wheel off the ground on take off.