hey,i have a x12 107cc,i put a26in carb and intake on it,custom exaust,20tooth rear sproket/17tooth front,and im runnin premium in it with ahint o octaine booster/mix,i also changed the cdi to a performance one,(but dont see any rpm difference),also my bike is automatic,after all that im runnin 50 MPH solid,what can i do to go faster?