Degree a camshaft.

there are 3 things that affect cam timing-the slot machined in the crank, the slot machined in the cam, and the dots on the sprockets. 85% of the cams I have degreed in are +1*, right on, or -1*. if a cam is of some it is not the end of the world, a little advanced is more low end power and less top end. a little retarded is less low end and more top end.