Slant Six Carb Help

I have battled bad carbs and crappy re manufactured carbs on slant sixes many times. The solution I have used was to switch them to 4 barrels. Ever since I started to change the mover to the 4 barrel I have had way less hassle. Plus with the 4 barrel you get an electric choke which really helped the cold starts I've gone super six and had the same results. Once in a while I would get a carb that would not give me any hassle but it was rare. It seems the 2 barrel supply for the super six is non existent and you get a 318 2 barrel when you buy a reman no a days.

Would you know what model 4 barrel would work for a 225 slant? And what modifications and/or other parts id need for the 4 barrel to work?