Well, have spent the day testing everything. Bought a new ignition coil and changed the battery just in case.
With the ignition switch in the “run” position, there is 11.3 volts on both positive & negative terminals of the coil. When the key is turned to the “start” position & the engine is cranking over, the voltage drops to 1.4 - 3 volts....not enough to power the ignition.
I have an MSD “all in one” billet distributor. Called MSD to trouble shoot - the tech told me I need 10 volts at start to power the unit.
Should I be looking at the ignition switch as a possible issue?