Well I'm getting my MFI throttle bodies restored and I've come up against a "hurdle" with re-plating the control links.

Some of my links are ferrous (attracted by a magnet) and some are not.
Any idea of what the deal is?

My plater said he couldn't re-cad or zinc the non-ferrous control links as they dissolve in the plating solutions....that would be a bummer.
Seems like he already had a bad experience with this in the past.

Anyway, any thoughts on this and what it means would be helpful.

BTW....the engine and MFI components look to be original but who knows.
I didn't make note of where the 3 non-ferrous control links were located amongst all of them.