I have rebuilt and upgraded original equipment stovebolt point-type distributors by boring out the top of the housing and installing a Torrington needle bearing, and adding a hardened steel sleeve to the distributor shaft. I remove the grease cup, spring, and plastic disc on the side of the housing, and replace it with a 1/8" pipe thread grease fitting. That procedure totally eliminates the shaft wobble and dwell variation that has been a problem since those distributors were new. It's also possible, but not really necessary, to add a bronze bushing at the bottom of the housing.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!