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

The class the 65 Barracuda runs in now is M, i just finished building my 65 cuda 273 commando, first time out being easy on car it ran 12.50s, that is with stock lift cam and stock iron rockers, stock pistons, and 88 truck iron heads. The motor does like a some RPM to run good.