Does anyone know of a website with good info on Hurst wheels or know the dates of production? I know late 64 or early 65 they started making them, but I don't know when production ended.

By '68 they were no longer available retail, so production was probably done by then. If you want to buy some (and the prices are out ot sight!) check Hemmings Motor News and the national Pontiac/Oakland club.