Check out the scavenger pipes on the '57 Pontiac on second page 3rd pic down. Had a pair of them on a '59 Chevy in 1962. Gravel roads were tough on them!
That's a great site. It's been posted here before, but a few years ago. When you get to the picture of the Backup Pickup wheelstander with the 3 kids in front of it, I'm the little guy.