I'll have to do some research on this. Found an old SA book on building mopars, and they referenced this engine for drag racing!? Thought it was kind of odd in todays day and age of big strokers. I don't know if an 833 could even be shifted effectiveley above 9000 rpm. Just thought it was a cool concept, Dad was telling me about some small block chevys turning in excess of 10 in indy cars (he thought).