Quadra Jet carb ID plz?

This may be a decent carb to put on my 360, looking for opinions here. I don't know how to identify it, but I will post a picture of it below. It has been "on the shelf for about 25 years or more, but it has been stored dry.

If it turns out to be a desireable carb, I'm thinking of sending it off to rustyratrod for a rebuild. The intake is a Weiand Action Plus, which is a spread bore intake.

How can I identify the cfm's of this carb? Can anyone tell from the pic? I heard these were good carbs...

Mark