Carter AFB 1967 273 HIPO 4294S $75 shipped

I'm sure the 273 carbs with automatic trans were 4295 or 4305S for CAP emissions in 67.
Automatic, manual, CAP, and year model, all had different numbers. Wasn't a heck of a lot of difference in them.
There is a long chart/list of those numbers somewhere. I may have a copy of it in my archives from around 2007. Hope this helps