Just how quick were the 273 Commando's in the Quarter-Mile.
Regarding the 'LA' 318/230 HP 2-Barrel in the 1968 and later B-Body Mopars.
I never 'ever' saw one get into the 15.90's in Stock Trim.
No way, unless there was a 75 MPH Tail-Wind, and the Track was
angled downwards at a 15* Angle.
They were in the 16.50 range at best.