A lot of carb'd blow through turbo and supercharger systems place the entire carb in a box that is pressurized. By doing it this way you do not need a special carb, even vacuum secondary carbs will work in this type of system. For the fuel system all you need to do is get a fuel pump that you can put a fitting on the vent side of the diaphragm and attach it to the boost box the carb is in.
