Just do it ! Seat if the pants difference ! It does work as it should but it is old because the way it is stamped they do not do that anymore is what hotcam told me over the phone but it does it’s job so far.
How much power increase does this give? it is a very noticeable increase in power. I used mine with a 11.5-1 compression wiseco piston w carb rejet and a pipe. disculpe ya el arbol de levas viene con su Sprocket; apologize and the camshaft comes with Sprocket none