Carb info needed

Hi All, my brother gave me this carb yesterday. He thought I might be able to use it seeing as I'm getting into all this old stuff. He thinks it was off a ferd he had years ago, thinks he didn't run it very long. Dust from sitting in his barn for years. I haven't found much by google on it other than it seems it's a Carter AFB, 600 CFM I think. No choke, so prolly not a good year round carb in Wisconsin (which it won't be used for anyway).
I'm thinking of using it on a stock '76 motorhome 360 I have that has a 2bbl setup on it now.
Good carb? Junk?
Thanks!

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