Lucas Distributor for Triumph TR3

I decided to change my distributor for the one that originally was fitted to my car. My old distributor was a Lucas 25D, 40919F, (from an MG) and I changed it to a Lucas DM2, 40735A. My vacuum unit now matches my distributor. And I experimented with the timing and vacuum. Lots of good information is available at this site as well: https://mgaguru.com/mgtech/ignition/p...