This is nice.... I'm fairly certain we talked about this car last year, but can't find the post.
There seem to be quite a few big-car Pontiac convertibles for sale lately (anecdotally), and a surprisingly high fraction with 4-speed transmissions.
Pretty sloppy of the dealer to take pics of the car in such a dirty state...you know, nothing makes me want to shell out $50k faster than a dusty engine bay and some brown drips around the 421 emblem. Come on, man.
Link to 1966 421/4-sp Catalina Convertible auction