Sometime years back I remember seeing that info on the internet. I was chasing down info for my first car, a 65 Dart 270 post with a Charger 273 and a 3 speed on the column. I remember seeing the 112 figure for the 270 sedans and I believe 8 with a 3 speed. Yes the Galen books are not perfect and he does cater to higher end E and B bodies. But not all of us are privy to the info that Ulf has available. I would consider more of Galen's info to be incomplete than inaccurite.
