Msd cap is junk

[MEXJOE]

I did check that when we put the new cap & rotor on. I used a dab of grease and checked it and cleaned it thoroughly before re assembly.
We have a through firewall coil wire adapter do you think this could be causing a resistance and overloading the MSD?

Originally Posted by Bill Grubbs

Any cap/rotor will do this or worse (melt) if the tang on the rotor does not touch the carbon button on the cap. Bend the tang up to touch the button.