Correct initial position for distributor

I said above that the engine started up and ran with the distributor in the position I described in the photos on post #5.

But before it started I had to figure out why I initially had no spark. This was the reason:

View attachment 1716300175

The screw with the square back was rotated, a corner was touching the mounting plate. It was like the points were always closed. The clear plastic retainer tabs are somewhat flimsy. These are new points I bought from Rock last year, naturally they were very inexpensive. Maybe there are others that are built better, with this scenario in mind. But how to know?

BTW, is there a way to check or to know if the rotor cam lobes are worn or out of spec?
It is beyond extremely rare for the distributor cam to wear, since the rubbing block is much softer. You do need to put some type of a good high temp grease on the cam, though. Don't glob it on, just a thin film.