Along those same lines, I shift my 833 in my 66 Dart from 1-3-4 or 1-2-4 and there isn't a ton of difference. I could see where a 833-od could be a little wide ratio but no different than a 3 speed. A friend had a 340 Duster with a 3 speed and it screamed. No problem with the 3 speed.
