Yes, if all the other wires are off the ballast when testing.
The problem you have is that you have power running to your coil when starting, but not when you let the key back to the run position.
They are two different connections inside the ignition switch (Ign1 and Ign2)
One gives power to the coil ONLY when cranking, and the other one give power to the coil ONLY when running.
Just a note.
I have had these cars not start until I let go of the key from cranking, and this is the exact opposite problem. (the cranking circuit was dead) but the run position of the ignition switch fed coil power.
