LT7AQuestions(1)Answers(0)Posts(0)CommentsB-12 Chemtool – Carburetor, Fuel System & Injector Cleaner Directly Into 4 Barrel Carbchemtooler answered 11 years ago • Choke, Cleaning / Degreasing > B-12 Chemtool® Carb, Throttle Body Cleaner2516 views1 answers0 votesCrop