Hello to all fellow members. In reference to the sensor on a 1990 Fxr 80 cubic inch engine,that is a stage one set-up. What sensor would be better to run a single or duel which correspondence with the coil set-up. What would be a safe limiter with that set-up in which most Harleys rev no more than 4500 thru 5500 rpms at that stage.:bigsmiley6: