Where do you find the model number? I have a stromberg that says 3-273A on the top lid near the fuel inlet. That the smaller one you're not looking for? Always thought bbd was carter.
I have two Strommberg WW. I don’t know the part numbers. Both are manual chokes most likely trucks. One is suppose to be NOS. Very nice will need new gaskets and seals I am sure. The other is used and will need a rebuild.
NOS $175 plus shipping
Used $75 plus shipping.
Take both $200 plus shipping
you are mixing a 67-68 era part number, that would not be on the carb, with Stromberg brand, and negating with a Carter description, and a 64-65 era.
What do you want? or What installation?