The stock TB is Aluminum, so it can't rust. If it's corroding, it indicates cooling system neglect. If you're talking about the steel hose nipples pressed into the Aluminum: either press in some similar galvanized steel brake/fuel tubing, or tap for brass fittings.
I should have been more clear:banghead:banghead:banghead I was referring to the metal nipples that go into the aluminum throttle body they are not completely rusted off but getting near there. I was just wondering if there were any tech write ups.