Where can I get these ignition points from?

ROFL. That was factory equipment:



They were fine carbs, too; at least as good and at least as bad as the various Carters and Strombergs and Holleys more commonly used on Mopars. Wasn't the last time Chrysler bought carbs from Rochester, either; they put Quadrajets on 318s and 360s in the '80s. And GM's electronic ignition is objectively better than Chrysler's.

Seriously: hate on lousy parts because they're lousy, not because they were made by a company affiliated with the maker of a brand of car other than the one you prefer.
But it didn't run with that carburetor, and my dad had a spare BBD hanging on a nail in the garage.
In 1980, I was pretty well sick of having my 1966 Plymouth badmouthed by all the Ford and Chevy guys, so I wasted no time removing that carb.