1967 barracuda 383 4spd on CL

Ok, I quess I worded it wrong, I realize it’s not something that was done when the car was brand new, but I saw one on a car at the track and another on a car forsale at Carlisle and they all look the same. I asked about the car at Carlisle and there was a name attached to it, but I forget. I almost think there was one in a magazine years ago. Was hoping someone would know. I’m pretty sure there is more to it than some guy with a bucket of bondo in his driveway.