look cams!
and cam gears!
This is how I made them, used an EG Civic rotor as a jig to set the angle, a headbolt through a socket that just so happened to be like .003" smaller in diameter than the inside hole on the cam gear. Clock the rotor, clamp, clock the gear, clamp, drill, repeat. Id place my error at 2-3 degrees on crank most.
