What is the performance of Fox's dirty throttle?

The speed is unstable. When the speed is serious, it will be raised to 2000 rpm, and suddenly it will turn to 100 rpm, or even stall. I often clean myself, open the throttle in front of the idle valve, turn the key to the power-on position, pedal to the bottom, find a can of carburetor cleaner to spray it and then wipe off the carbon deposit, then drive the car uphill, pedal to the bottom 10 second, then idle for a while, then pedal to the bottom 10 second to discharge the carbon deposit dirt outside the three-way catalyst.