No. The BBS ("S" for "Single barrel") was used on 170s and 225s. That's the kind of carburetor the original poster has. The BBD ("D" for "Dual barrel") was used on 273s and 318s, and is not applicable to the original poster's car.
Parts store carb kits have dropped very far in their quality and completeness. Go get a good kit from www.thecarburetorshop.com . You'll probably have to ask for a float gauge separately; they don't tend to come with kits any more—at best you get a useless little strip-of-paper ruler. See here for workaround.
