>>>Would heat cause it to fail,
then work later on?  I thought at the time it was a too lean setting (I had
leaned out the AFM a few notches), the altitude (this was at Shenendoah
National Park, Skyline Drive), or possible the timing being too far
advanced >>>>

If the hall sender is working, you will see your tach 'pulse' while the
starter is cranking.

Mark Ingalls
85 GL