Actually it is a stepper motor. It is something new from Dedenber Products. It is called the Stepper Throttle Stop System. It is a blade type throttle stop. I first saw this in the May 2008 issue of Drag Racing Action. We use both stepper and servo motors at work and they are very accurate and repeat consistantly to the same position every time.
Also thanks for the information on the throttle stops.

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