What do I have here?

If you decide to rebuild it. Be VERY carefully with the idle screws, if it is a CAP carb (I don't think so but...)

There are hidden set screws to prevent the idle screws from being turned or at least turned too much and if you force it you will break the screws and they are made of unobtainium.

Not to mention getting them out of the carb.

I bought the carb this way!

FIXED - AFB 4bbl broken adjustment screw