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View Full Version : Performance increase with different size pulleys


Race Grandpa
04-12-2007, 08:04 AM
For a 97 with the coldside FFS what are the different performance levels with the different size pulleys that Tom has available?




:party:

Tom @ Fast Forward
04-12-2007, 08:36 AM
Each 5mm increment is about 1.5 pounds of boost and 5-7WHP increase.