Who was making ignition insulator on valve cover

I think (think) the Charger/ Commando covers use the same looms as the regular covers for the same years. Photo #3 is the 67 covers that use the dual wire loom. Note the small hole in the bracket between the plug wire openings.


https://www.forabodiesonly.com/mopar/threads/charger-commando-valve-covers.444973/