You’re right, I can find a shop, either in TN or in Ohio, and I’ll be in both this month. But; my question is what’s wrong with using something like Permatex Permashield? They recommend it for intake manifolds. I know that one problem with rtv is getting a part back off; but other than that? Permatex advertises parts put on with Permashield to be easily removed and replaced.
That's all I ever use. I haven't use China wall gaskets on my sbm or SBC in going on 10 years. I have never once had one fail. Street car or derby engine at 300 degrees and everything is self destructing