From Mancini Racing:
Mopar Performance ignition control module.It's chrome, so your motorhome might be embarrassed ...
Mancini Racing is about an hour ESE from Detroit. They have a very solid reputation and I have reason to believe a lot of NASCAR teams use, and maybe rely, on them.
It looks like they're starting to sell out of NOS Mopar Performance parts, like everyone else. (Chrysler shut down the Mopar Performance division decades ago and the old stock is highly sought after.)
Mancini Racing would be a very good place to talk to if you have to go aftermarket. They'd definitely know what's good and what isn't.
BTW -
this is an example of the bridge-like heat sink/mounting bracket I mentioned.
