Be sure to apply some silicone sealer on the PTO end pin to keep oil from leaking out, too. Always dial in a high performance cam to get maximum power from it. Timing of the valves in relationship to piston travel plays a huge role in how well an engine performs. The best method to find TDC is to use a degree wheel, dial indicator and a piston stop. This opening and closing is very critical and cannot be done by feel or by sight if you intend to accurately check your camshaft.
Dial indicators are very precision and delicate instruments.
Piston stops must be fabricated from scratch, as they're not marketed for single cylinder engines. Failure to accurately degree in the camshaft can effect how an engine performs. Proper valve timing quickly becomes a crap shoot without a degree wheel. Published valve timing is only a suggested starting point based on dyno testing and track experience. There are variables that may call for different valve timing in your specific combination.