We have partnered with a custom cam manufacturer to bring you our own proprietary line of camshafts for the TW200.  This midrange camshaft has about .080" more lift than the stock cam and makes much more power in the mid to higher RPM range.  This cam has a very smooth increased power delivery throughout the middle of the RPM range without a noticeable loss of low end torque.  Due to increased lift and duration there is a natural loss of cylinder compression, so it is recommended to be used with bigger bore or higher compression pistons, carburetor modifications, advanced timing sprocket, and free-flow exhaust.  This cam likes one tooth of advance when using the stock cam sprocket.