T/A addict, here's an example.
https://www.ebay.com/itm/Pontiac-455...EAAOSwSPBaZUb6
These have been listed for about a week @ $2750.00 opening bid.
Nobody bid yet. 8 hours left on them. If my eyes aren't lying to me, it looks like C142 (March 14th, 1972) date code on them. They appear to be unmolested. He may be starting on the upper end of what they are worth, maybe not!
I don't know. I don't think they're stupid high. If I needed them bad enough, I'd buy 'em.