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

318,

Then it did have some performance up-grades.
* Dual Exhaust w/2" Pipes
* Solid Lifter Camshaft .......... Lift ~ Duration ~ Overlap ..... 'Specs' ???
LOL... where did you read "solid lift cam"?????????? I said a FLAT TAPPET cam, as some 1985's came with a roller cam. Normal, Flat tappet cam like any other 318 LA...lol And, the dual exhaust was on the car when I bought, but I don't think it needed it. It still had the single point distributor that the 273 came with. AND, I couldn't just "mash" it out of the hole, or it would spin the tire to no end (it was a one legger). So, my 15.90's came "eas'n it out of the hole"