My prom was in 1968. Took my once new 1967 283 Chevelle which I had completely taken apart and rebuilt (headers, cam, 4brl Holley, cheater slicks etc etc. much to my dad's dismay, I wanted the 396, he said you get the 283) it was a wanna be....... didn't get my 70 1/2 Z-28 til a few years later.