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

I think you misunderstood.
The spec. I was referring to,is the .76hp/cid. Ergo; .76 x 318 =241.68 hp.
I could see how you made the jump.Post #77 edited.

As to the .97, well that was referring to the 273;ergo, .97 x 273 = 264 hp. This would indeed be a race273.
I agree that 1.1 on a 360, which being 396 hp. would not be a race engine, but certainly a pretty hot streeter.
On a 360, 1.2 hp/cid is still streetable(430hp),cuz in a 2900 lb A, it could easily go 12.7 on street suspension, a stockish TC, 3.55s and probably on skinny street tires.

The whole aim of the story was in response to poster 273, who in post #71, stated " My current 273 should run 12's.. ", and in his Avatar is an early Barracuda. For this to happen, the story applies; 2900 lbs, 264 hp, and a race chassis, minimum ET of 12.7sec. Chryslers empirical data is hard to argue with. Since he said "should",I was merely trying to help him achieve his goal(s).