The numbers listed are for a Holley Universal carburetor.

It doesn't come on a particular car.

Source of information - http://www.holley.com/HiOctn/ProdLin...SC/0-8007.html

The 390 cfm Holley came on quite a few cars.
I'd say stroll the junkyards and see what you can see.

You're gonna have to be lucky though.
My experience has been that the carburetor is one of the first things to be removed in the salvage process.
Could be an advantage, lotsa times the carbs end up inside in a bin and finding a matching pair could be easy.

Might want to take a look at the Mopar small block engines.
They run a fairly small AFB.
Look at the mid 60's 273 engines, particularly the Barracuda's of 66-67-68.
Rebuild kits are readily available for them - least they were a couple years back - and a couple of these would work well for your application.