ignition resistor glowing red hot on back side?

Are you CERTAIN you have the correct side connected?

Are you using a factory coil or a "hotter" one?

What is your battery running/ charging voltage?

See here:

MyMopar - Mopar Forums & Information - Mopar Ballast Resistor Test

The BOTTOM side in this photo goes to the coil

Ballast_Resistors.png

I actually don't remember if I've ever tried to see if these ran red hot................