i've read a lot into turbo carbs and from what i found you can seal the shafts and pressurize the float chambers and use delortos with boost, same as the esprit turbos, other than that you can build a pressureised box around the whole carb and boost that without sealing the carb, only thing you need to do then is make sure you have adequate fuel pressure, you can get a boost activated fuel regulator from burton if i remember right