Chasing a non-spark problem on my 66 300, changed the electronic module tonight ran for awhile then died again. I'm assuming its the "relay" in the distributor;

By the way I converted to electronics to eliminate the points sytem.

Any directions folks can offer so I don't screw this up tomorrow/today. I've never torn into a distributor, so would like as much detail as possible.

Thanks in advance...........pun intended.