Ok well i got a minarelli v1 engine that i need to kick the shit out of my brothers new tomos. His torque is unbelievable and i just can't stand losing. So on my moped i was thinking going for the polini 80cc kit with the bennasar grand prix pipe. I can't decide if i go with a 16mm carb or 19mm carb? which one would be best? Im thinking of getting a 16mm and jetting it big? THanks for the help.