you would be better off selling the carbs you have currently and buying a set of alky carbs already set up for methanol (or have yours converted by a builder), for one if you don't install the powerjets (boosters) currectly you will seize you motor from being lean, for two the builder you buy em from or have your's done for around $100-$150 will provide the correct dump tubes and jets for your elevation when you make your order with them......otherwise you can't go wrong with alky carbs because your increase in power is gonna be from 10%-15% and your motor is gonna run cooler, just make sure and gap your plugs at .018" w/ a b9egv plug (NGK) and don't forget to purge when done riding for the wkend....good luck and you'll be very pleased....hope this helps....PS, good builders to do this would be K&T performance, A&S, Dave Moore Racing, jeff at FAST RACING, Black label Racing (SSR), Redline, LCperformance, D&M Racing, etc....