Dyno Cams' .308 lift cam for the old style non "hemi" head Harbor Freight 212cc Predator Engine.The 308 cam is easy on the valve train and has a very wide power band. This cam requires an upgraded spring package, billet rod, and billet flywheel.Engine: 212cc OHV PredatorTarget (MAX) RPM: 8200-8400Spring Pressure (In / Ex): 32 lbsValve Lash (IN/EX): .003"Ignition Timining: 34 Deg BTDCINTAKELIFT: .308Dur @ .050": 244.2 Deg. C/L: 108 ATDCEXHAUSTLIFT: .308DUR @ .050": 2446 Deg.C/L: 108 BTDCTHE LOBES ON THIS CAM ARE WELDED.Processed and ground by the hard working employees of DynoCams in the USA.