I have about 125 k on my Crane and it is going strong.
Convert your points-type distributor to an electronic ignition with these Crane XR700 ignition modules.
Crane Cams 700-0300 - Crane XR700 Points-To-Electronic Ignition Conversion Kits
They offer increased timing accuracy and replace many Bosch, Lucas, Hitachi, and ND units. They feature an all-new status LED light for easy diagnostics, and are fully potted for protection from dirt, moisture, and vibration.
They're also highly reliable and precise with their optical trigger design, and have a more powerful signal than points-type distributors.