Just goes to show you my memory is very good, but also very short.
Here's what I posted along with a link to that SC.org discussion:

"There's actually a number of threads at SC.org about bendix injection on continentals.
Maybe this is the one you're referring to?

https://www.supercub.org/forum/threads/ ... 470.47252/

I read through this thread, as well as several others,
gotta say it didn't really un-muddy the waters all that much for me."

Just skimmed the old Supercub info. If you look up N3106C on the FAA website, that has the address of the same guy that has the 180 with Bendix FI.