Feuling 630 Race Series Camchest Kit For Harley Twin Cam Feuling complete cam chest kits include necessary components from top to bottom of the cam chest conveniently packaged under one part number Features: 25-35 degree cooler engine temperatures 15-30 degree cooler oil temperatures 15-30 more pounds of oil pressure Quieter and smoother engine operation Eliminates wet sumping, blow by and oily air cleaners 630 Cam Info: 630 cams offer vicious power gains, wide streetable power band from a high lift profile camshaft for high performance engines with highly modified cylinder heads and compression ratio. Carburetor and or throttle body work required along with a performance exhaust and intake system. Maintains low end performance with eye blurring mid and top end power. High performance valve springs, pushrods and lifters required. RPM 2,500-6,900+ Intake open/close 20/58 Exhaust open/close 64/19 Intake duration 258 Exhaust duration 263 Lift .630 Note: Carburetor and or throttle body work required along with a performance exhaust and intake system. High performance valve springs, pushrods and lifters required.