The final solution was to replace the double connector with the two
green wires. I cut the two green wires - put faston connectors on each
wire, and connected to the coil, worked like a champ. Engine fired right
up - tach is operational.

I cut the connector apart to see what was wrong and found the copper
inside was crushed. No way that was going to make a good mechanical
connection. I can only believe that the terminal blades on the new coil
were rough or something causing the material snag and curly up inside
the connector housing, thus making for a bad connection.

Now it works.

Thanks to everyone for the input on this.

JOhn