I recently purchased an A-Town 50. 49cc, 4 stroke carb engine. I am having a tough time finding an unrestricted CDI for this model. Anyone have any suggestions on which one to use? Right now the scooter is limited to around 27mph. I installed 5.5g dr. pully weights, and an unrestricted boss. Thinking there is a limiter in the CDI not letting the RPM's get near 9,000. Goal is to get the scooter going closer to 35 to help keep up with traffic on local roads.