the cut in the pulley is normal. Id run an electric fan myself. HErs a pic of your serp setup all cleaned up and mounted theu look sweet in IMHO
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Dean
edmonton,canada
a winter wonderland
2005 Chevrolet Avalanche LT
cold air intake, performance exhaust, Comp cams cam, jba shorty ceramic headers.
http://www.cardomain.com/ride/3090973