V-ROD supercharger cams. Suits built engine with ported head. Rotrex C30-74 Supercharger. Requires Valve spring upgrade KVS99. Requires tuneable ECU. Dyno tested to 240HP on 13PSI. 9000rpm+. Kit includes Kelford's DLC buckets to suit factory shim sizes. These cams can also be used on high comp, larger stroke NA engines.