Hey I just wanted to post and say I am very impressed with the March underdrive pulleys a friend and myself put on tonight. They are top notch quality and have no idling issues or amperage issues. My car also accelerates much easier in overdrive with no hesitation. It used to hesitate quite a bit if I tried to accelerate slowly. In case anyone is interested the part # is mch-2015 which are preferred for automatics or higher amperage cars.