I have a 130 amp alternator, but left the alt. pulley off, and have noticed no change in performance. I still have a lower charge at idle 750 rpm, especially with the lights and fan on, and I fear with a pulley on the amp it will be lower. Btw, I have auto specialties pulleys.
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Joe!
1988 GT, 167,000 miles!!! 13.58@105mph Check out my listing!
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