I think federal mogual quit making new ones years ago. Now your choices are to buy a decent used one and service it, have your original rebuilt, or buy an edelbrock version which is based off the original carter models.

The new edelbrock avs carburetors with the adjustable air door work better than the carter afb's, but they don't look 100% original. You can get parts easily and they come with a warranty and good technical support.

If you want factory original have yours rebuilt or buy another correct year core carburetor and have it gone through.

You can always buy a used 80's or 90's competition series carter off ebay or moparts for $100.00 or so and then clean it up and put new gaskets and floats in it. These don't look like your stock 1969 carburetor either, but all the new edelbrock service parts drop right in.