225 Slant Six Distributor Question

When I do a tuneup on the slant six, I pull the distributer, and set the points while on the bench. I do that because there are six lobes, and when they wear they don't always wear the same, so the gap changes from lobe to lobe, as well. That will effect the dwell, and tells me how much life remains in the distributer shaft. I can't see that when the distributer is in the block. When done, I then Re-install the distributer back in the same spot. Then reset the reset timing. If your worried about re-Installing the distributer, first turn the engine over until the rotor is at 12:00. Then It will be easy to re-install in the same place. Some books say .020 gap, but the old Chrysler books say actually .017-.023, which is why the recommended .020 came about. 017-.023 equates to the dwell needing to be 28-32 degrees. This is how Chrysler dealt with the Imperfections in the lobes of the distributer that they knew would eventually would appear. The more the wear, the closer to .017 you should be. You can install electronic, just keep in mind they require adjustment as well. Mine recommends .007-.008 using a brass feeler guage to set it. I hope this helps you some,,,,