Just how quick were the 273 Commando's in the Quarter-Mile.

Hey 69 Cuda 440 my 1965 barracuda has a aluminum flywheel 122 tooth I believe that says weber on it. Is that something that would be used in stock racing back then? Or did I find a marine flywheel. Its for a 9.5 clutch but I've got a 10`` in there now. Sorry for the off topic