Sorry, just got back to this post. JLP, you're correct, I meant 72 GTO. My mistake.
I was curious though about your comment that T-37's did not have hood insulation. I've never seen a 71 or 72 GTO, with Ram Air, that had hood insulation either. In fact, I don't believe any of the Ram Air GTO's (or Firebirds) used insulation.
Yes, I'm surprised that Olds stuck with a post coupe too.