i have a jog r 70cc with superspeed variator with 9 , 4 gram rollers in it , a kevlar racing belt , tecnigas 70cc exhaust and a 17.5 carb with 80 jet in it and a sport air filter on it. what else can i do to it to make it faster as it isnt as fast as i expected would the CDI be worth changing? or upjetting the carb more? or what should i do? thanks in advance