The Commando/Charger 273 4 bbl. was 235 hp from the factory, the D/Stock Darts were 275 and only relatively mildly modified. They respond well to all the same modifications as any other LA, keeping in mind the bore/stroke dictate more of an rpm engine, and not a torque monster... 300 horse is cake with the right parts, but the Egge pistons are about as good as you'll find for the 273's bore range. And there's just something about the sound of a nice 273 at full song that is just plain seductive...
