Looking for Carb informtion 273 4bbl

Hey folks, I am looking for what type of carb and numbers for carbs for my 66 273 GT. I am completing my second engine restoration and I know that the carb that I had on there is not correct, it was a holley. I know that it should have had a Carter and would like to go back to the original one for this engine/model/year. Any help is greatly appreciated.