I don't think you can simply unhook the parking brake connector. I believe the switch is "open" when your parking brake is on and "closed" when the parking brake is off.
That's not TORS... TORS doesn't sound like a rev limiter.
TORS or Throttle Over Ride System is a safety system which is designed to monitor the thumb throttle input and carburetor position and turn off the ignition system. It does this to keep the throttle from "sticking" and the blaster from running away. It accomplishes this through two momentary switches, one mounted in the thumb throttle box and the other located inside the box mounted on top of the carburetor. When you let off the throttle the box on top of the carburetor should also register "zero". If it doesn't, the tors brain/CDI turns off the ignition system,