Alky is a pain to use and milks oil if not set up correctly do yourself a favor and have a known company like apd set the carb up you will be happy guys always say it doesnt make any differnce well maybe not in big cube high hp motors but in most cases seen 2-3 tenths when set up right .And 55 gallon drum cheaper than race gas by far upper end lube and fragrance included 130.00