Cam timing

The trick to timing your cam the way you want to:

Extra holes.
In fact this isn't my camshaft I'm now using, it is Ralph's But we now have it timed for more power at higher revs.
It was probably made for dirt-track or motocross, probably even for ATC's where you would like to have power in low revs, but for roadracing this could be cranked up to about 11.000 RPM.
I don't want to go much over that, just because of reliability and gearbox limitations.