Glowing Coil Terminal

I fired up the car last night, popped the hood, then noticed the negative terminal on the coil glowing red. I just put a 72 340 into a 68 Dart. I have a new V8 harness. Everything seems to work fine. The engine fires right up and charges. I do have my Edelbrock electric choke connected to the coil. Edelbrock instructions state to hook it into the fuse block. Of course, any advice is greatly appreciated. Thanks FABO.