A:

Perhaps you could alert all of us as to the source of what you "saw", so that no one will ever rely on that source.

Bringing a strong, non-petroleum based solvent into contact with the diaphragms in the fuel distributor is a spectacularly bad idea.
The solvents in "carb cleaners" are intended for metal cleaning, and will attack any rubber, whether natural or synthetic.
A more appropriate solvent would be kerosene, or "paint thinner/mineral spirits".

Mr. Reiner, thank you so very much for the help!

It was the Source, but on a 6,3, so maybe different.

Brake cleaner fall into that also, right? I keep that way from rubber just based on what it does to my skin (you try and avoid, but still happens).

Or diesel oil, right? Kerosene is #1 diesel, thus my thought of why.

__________________
Current fleet:

1985 Mercedes-Benz 280TE - Waiting for heart surgery.

1985 Mercedes-Benz 300TDT - Rear ended 23 September 2016 and now looking for a new home.

1979 Mercedes-Benz 300TD - Parted out.

1964 Volkswgen Beetle - Vater's since September 1968 and undergoing a restoration.

1971 Volkswagen Sunroof Squareback with F.I. - in need of full restoration.

1971 Volkswagen Squareback automatic with F.I. - Vacationing with her caretaker until he is in better health.