Rochester Carb info.

I pulled this carb off my 53 belair and im looking to get another matching carb but i cant seem to find one. I think that it's a model B but cant find any others that have to same top on it.
Any more info would be great!
Thanks
Adam

 

With a manual choke, that's not originally from your '53. It's from a truck.

 

Ok cool. It was a rebuilt carb that was on the car when i got it. Im stating to think that the rebuilder cut the original air cleaner mount off the top and welded on an adapter so it would fit the slip on air filter the cars had. Any one else think that could be the case? Maybe or maybe not?
thanks.

 

That is definitely not a stock 53 BelAir carb.