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

Just saying, if the '65 A-body with Commando 4-speed and 3.55's went a best of 16.03 stock, and my '65 B-body 318 ('85 LA stock using the 273 manifolds the car came with) 2bbl with 2.94's and auto went 15.90's, I'm in for the win, correct? I believe my dragway is at 600ft above sea level, that could be a big difference if the Commando is at 3k ft. Just say'n


In 1966, my 1965 Valiant 100- 2 door sedan ( listed as 2660 #s in manual) Commando 273, 4 speed, 3.23 non sure grip, stock 6.50 X 13 tires ran a mid 16 sec quarter.
Bought on a used car lot- a retired track car (fenderwell header patches) and had 4.56 gears with sure grip when left dealer- blew the rear on way home from lot- burnouts, hitting the gears.....