Six years ago I couldnt keep points from burning up. The suggestion from some good people here was to replace it with an HEI distributor, which made sense. As some of you know I've had recurring starting & running problems for some time. I just put in the 4th coil in six years. It started the minute I hit the switch. Any ideas??

I only quickly scanned your former posts about your conversion. Some thoughts:
Although you have 12V with Ignition "on" on the coil are you sure there is still 12V when you crank? I had some starting troubles once. Found out that the coil was fed by the "ACC" in the fusebox instead of the (for example)the "ENG". Maybe you should try to feed the coil directly from the battery (+)and see what happens.
Do you have a switched 12V to your coil?