Issues with 74 Dart

Starting problem:
I am getting the added voltage on Ign2 in start to the + coil. So switch/wiring/ballast should be good.
When I changed the ignition switch it was working the same way (No change).
I have tied the two yellow wires together on the Interlock relay. (No change).
I changed the Ballast resistor for a third time with no change)
Could a bad pick up coil in the distributor cause this problem?

Idle problem:
The idle mixture screw adjustment works like this:
One direction (Rich) does not increase idle.
The other direction will cause idle to decrease and die is not careful.

Thanks for the suggestions.