It really works good and no problems putting it inside the carbs. The shop that does all my heads uses a blaster with baking powder and I can tell you its so much better. He used to use a glass bead but the work to clean the passages in the head was quite extensive and the same goes with sand blasting the residue would get in and even with boiling them would still have to worry about it. Now no problems and like the article said it dissolves in water the end result is actually cleaner and there is no metal removed so you dont have to worry about mating surfaces and delicate work. The heads dont come quite as shiny but I would rather have clean and safe than shiny and hidden dirt. Not to mention a little paint and you will never see the difference.
