[NEUMANNZZ]

invest in a new/used timing light.
to install distributor, before removing old distributor mark position of rotor and housing.(dont mark the old distributor)

rotor positon can be turned by cranking engine to get it number one cylinder on distributor cap for easier reference, then just mark the housing location. photos help also.

once you marked the two positions. remove hold down bolt on clamp. pull out distributor slowly. rotor will turn while pulling it out, keep this in mind when installing new distributor to line up rotor location.