Carb identification help

Hello, everyone. New to the forums. I've spent about a week trying to identify this Holley carburetor, but I have had no luck. I've tried searching these forums and over at /6.org as well. The best information I've come by is that it could be an economical carb, maybe even used on farm equipment.

The reason I'm trying to ID the carb is I want to rebuild it and put it on my '67 Barracuda that has a stock /6. I have an aluminum 2 bbl manifold waiting for it. Plus, it gives me something to do while I'm stuck in my room because of a broken ankle. I've attached some photos of the carb. Hopefully they are good and clear enough.

Any help or information would be greatly appreciated.

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