360-383 A-debate...max builds need not apply.

I personally raced a stock 383 commando in a '68 Fury III, 4 dr hrdtp. automatic, PS, PB, 3.23 gears. Stock manifolds, intake, exhaust, you get the point. I ran a 15.19 at 4400 lbs at the starting line. I'm sure if the motor had been in a low option, lighter RR with 3.55's mid to lower 14's would have been on tap.
I currently personally run a 74 360 duster with zero tricks that has gone 13.7’s@100. 3550 race weight 3.55’s 215/70 14 radial tires.