Motorcraft 2100 Carb

I've read a number of threads on the Motorcraft 2100 carbs. I read that a lot of Jeep owners switched to the 2100 from the Carter carbs. I would like to purchase the 2100 for my 70 slant six. I have the super six manifold and I don't want to mess with a reman carb. Does anyone know what the specific modle number of the carb. Many of the carb sites ask for a make and modle of the car. Can these carb be purchased new? Thanks