It's in the owner's manual, but here it is.
Set the points to .020" first.
Move the spark lever to the full UP position.
Remove the timing pin and press it against the cam gear.
Slowly hand crank the crankshaft until you feel the pin drop into the detent.
The distributor rotates counterclockwise, and the points should just be ready to break open when the pin drops into the detent.
If you need to move the rotor, then remove it and loosen the screw holding the distributor cam. Move the cam to the desired location and tighten the screw.
The tool for holding the cam is only about a buck and should be in everyone's toolbox.