Feuling 538 Race Series Camshaft Kit For Harley Feuling camshaft kits for Milwaukee Eight engines include chain drive camshaft, lifters and a cam installation kit that includes cam bearing, cam/crank hardware and a gasket/O-ring kit that allows for install of the factory one piece pushrods. 538 Cam Info: Aggressive camshaft with a nasty sound. This camshaft revs up fast and pulls hard in engines with big bore cylinders, modified cylinder heads, intake, compression and exhaust. The Reaper 538 grind will shine in 124 and larger cubic inch engines with added compression ratio. Ported cylinder heads are not required but will complement the cam and add even more pulling power throughout the range. The stock throttle body produces an excellent powerband and use of a high flow throttle body will increase peak power numbers. Intake open/close 20.5/38.5 Exhaust open/close 48/18 Intake duration 239 Exhaust duration 246 Intake Lift .538 Exhaust Lift .542