My JH27N0B code Challenger 'vert is rarer, production wise than an JS27N0B R/T, but never has and probably never will be as desirable. In fact I've only seen pictures of a couple other stock ones, mine's the only one I have seen in person, that I know about. That's because most, and most BH27N0B Barracudas, have been dressed up do look like R/T's and cudas.
Mine is a 330 hp automatic AC car, same engine as used in many other '70 Mopars like Furys and Coronets. Not the 335 hp motor, but I'm not sure why that would worth worrying about?
I like being having a car that's a little unusual, even if the crowds at the shows and cruises are drawn to the hood scooped and striped examples!