I know it will make many cringe but I had a set of VB carbs for my CX500 glass bead blasted by a guy who knows how to rebuild them and to keep the blast media out of the carb internals. They came out looking very nice as well. Vapor blasting by people like Nils at Restocycle can refinish the carbs and they look better than new and Nils knows how to keep the media out of engine internals and carbs and other sensitive areas on the parts he handles. You cannot trust just anyone to do it right as many will assure you they can do it but reality has proven otherwise. Blast media will get into just about anywhere and everywhere, so you have to be deliberate in efforts to block it from those sensitive areas. Nils takes the time and expends the effort to control that very thing...
David