Back in the 70's, I had a ratty 1966 El Camino that wasted almost everything in its path. Had a 1971 454 (.60 over - 468) and an earlier Turbo 400 trans in it, along with a 12-bolt rear with the spider gears welded, with 4.11 gears. It had an Offenhauser intake with a 750 Holley on it, Crane Fireball cam, Accel ignition, forged crank with Keith Black pistons, and a crappy set of unknown headers. Biggest problem I had with it was getting it to hook up. Didn't really have drag radials back then. Ran 11.20's on Mickey Thompsons with the headers open.
The Mustang, Camaro, Roadrunner crowd got embarrassed quite often...