hey, i think these are the carbs you bought off of me on ebay. checked billspipes website for specs for those pipes. says 300 mains and 32.5 pilots with stock airbox. 310 mains and 35 pilots with open air filter. that is a starting point for you. you could also call them to @ 951-371-1329 for tips. look in the pinned section of this forum as well for tips in dialing in your carbs. i don't know of anyone who runs those pipes to point you in a direction on which way to go.