Anyone Rebuilt an Original Style Vacuum Advance

I found an NOS Style advance. Apparently, the dual point on the '65 Prestolite distributor uses the same can from 57-59 Chryslers. In researching the part number, I got back that far.

I found a site that had about 18 of them for $30 (Not sure how old the inventory number is).

I had been in contact with a guy on EBay about some he had posted. We went back and forth with pictures and he sold me one for the same price. Works perfectly again.

Ran into a miss problem on the HEI changeover I did. 1 Broken distributor, 1 defective rebuilt, missing on one cylinder below certain RPM. 2nd defective rebuilt also missing on one cylindar below certain rpm. Caused complete replacement of wires, cap, rotor. Problem went away once, but I moved the distributor to time and it came right back.

When I put the dual point back in, all of those new ignition problems vanished. Everything running smooth and loud.