Coil getting hot

[JARRETT LYNCH]

Hi everyone, I’m new here. Just bought a 69 super bee with 383 mild cam , stock 906 heads. The previous owner said he put a new electronic distributor and ignition box on. I notice when the car is running for several minutes the coil gets really hot to the point you can’t touch it. I tested the coil and it tested ok. I made sure the ignition module was grounded. With the engine running the positive side of the coil is 11.8 volts. That seems high? Maybe need different ballast resistor? It looks new.
The coil is Accell super stock. Here’s some pics. What do you think?

 

[Geoff 2]

You will need to find out what bal res is supposed to be paired with THAT coil...& get one.