We have partnered with a custom cam manufacturer to bring you our own proprietary line of camshafts for the Yamaha 200/225/230.  This High RPM camshaft has about .120" more lift than the stock cam and makes much more power in the higher RPM's.  It has a very hard hit in the mid to upper RPM range.  Due to increased lift and duration there is a natural loss of cylinder compression, so it is recommended to be used with a bigger bore or higher compression pistons, larger carburetor, advanced timing sprocket, and free-flow exhaust.  
 
Note:  This cam is big and requires that piston to valve clearance  and valve retainer to valve guide clearance be checked before operation. 
 
Informational video here: https://youtu.be/7KXsVuO-fNo?si=m4aqqmnQ_BL0zeXu