To someone with a RA I car, very valuable. To the rest of the Pontiac crowd, I would think no much more than you would pay for a set of 16s, maybe 200-250? I say that as they didn't flow any better/have something unique and different about them other than the casting #.
Probably 5 or 6 times that if not more to someone with a RA I And date codes line up.
Just my opinion.
1968 400 Coupe, verdoro green, black vinyl top, auto 1969 GTO Judge coupe, Carousel Red, manual 1971 Trans Am, cameo white, auto 1970 Buick Skylark Custom Convertible 350-4(driver), Fire Red, white top, auto 1972 Buick GS Stage 1, Royal Blue, black vinyl top, auto