I've seen comments about setting dwell for a 1952 Ford 8N. I've done this on autos with the access widow in the distributor cap but now I'm lost. Suggestions?

It's really not necessary in my opinion. Just set the points to .025 and you should be good to go.

If you really want to set via the dwell, connect your dwell meter per the instructions with that meter. Dwell should be about 54°.