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- Cams run to 6500 rpm with stock hydraulic lifters
- Stock base circle sizes allow the use of stock pushrods
- N4 are for stock or modified applications and have a slightly higher idle speed, but can be used with stock hydraulic lifters and springs; rpm range of 2500-6500
- Fits:
- Sportster 1991-1999
- Buell 1994-1999
- Made in the U.S.A.