Electrical Problem

The 87 Skinautique has a short I believe. I was doing a tune up and it was not wanting to start after adjusting the dwell to back within specs, the battery ran down. Tthe next day after a good battery charge things go dead after I turn on the key. Did some early testing. When the ignition and accessory breakers are turned on they light brightly and we have 12+ volts at the in side of the key switch. When the key is turned to the run position the breaker lights dim, a few gauges twitch and then drop back to nothing, and everything drops to 10 volts at the ignition switch (In and out). Will not turn over at all, not even a click. I do see a full 12+ volts at the 50 amp breaker on the motor no mater whats going on at the dash. I obviously have a volt/ohm meter but don't claim to be great with it or to have great investigation skills 

On the bright side dialing in the dwell has it running like a champ.