A stock 383 with bolt ons and slicks and gears can run a low 13; that was nothing uncommon if the guy had any skills. IIRC Hot rod did a road test back in the day and got mid 13's with headers, induction, and slicks. I had a 383 bee that would run 13.20's at Famoso with a very mild combo. It would smoke the average 396 Chevy, and I street raced many of those.

On the other post, I take it personally when someone bags on me on my job that I put a lot of work into.
-dulcich