[George/Maine]

Gasoline
I think with the resistance wire is your problem.
If you run just the wire and coil you will be ok
9 at coil and rest at wire resister must be about 3 volts.
Story my 39 was changed to 12 volt and had a resister and coil.
would start ok but stop and get gas and was very hard to start.
When I was rewiring the car 39s have a resister under dash .5 ohms.
The .5 ohms resister was in use drawing the voltage down to coil.
Lets say 2 amps x.5 ohms=1 volt taken for coil makes for hard starting.
So you are trying to use 2 resisters only need one.
Its a series circuit has to add up the battery voltage.