OK- - - -just couldn't resist any longer- - - - -I bought one of the new distributors in the link I posted, just to see what kind of quality it is. Compared to a well-worn item 70 years old, these things might be worth having, even if a little bit of tinkering is involved to put them into working condition. It looks like the shaft tension spring, grease cup, and plastic thrust washer will need to be acquired, and some sort of vacuum advance unit will need to be sourced to complete the assembly.

I'm working on designing an adapter bracket to use the same vacuum advance chamber as the HEI distributors on the stovebolt rotating distributor housing. Those items are much more available, and a fraction of the cost of the OEM advance chambers.
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!