273????

The article I have is old and I don't know what it came out of, but it says the 1966 D-Dart had a 700cfm carb and .500 lift solid lifter cam with 10:1 compression, 275hp. Sorry I couldn't help more with this. The D-Dart was the famed Drag race only package that was manufactured. I think the Commando/Charger HI-PO was 235 hp, and the standard 2bbl 273 was around 180hp.