This welded and ground cam provides .308" lift at the cam, which works out to .320" lift with the stock rockers. For open modified applications. The 308 is our most popular grind for modified clone class. This 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. Also fits the Habor Freight "Hemi" Predator with some head modification to prevent coil bind.Engine: 196cc OHV CloneRecommended Class: ModifiedTarget (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 BTDC