I needed to unscrew the check valve from the AIR tubes just above the manifold/header on the '82 'Vette. I got lucky and it wasn't seized/rusted together. I now need to reinstall the check valve and am wondering if it would be advisable to put anti-seize on the threads before I do. Will the anti-seize work in a high heat environment like that? Will it help for future removal (it needs to be removed anytime one wants to remove the valve cover ) or will it make things worse? Maybe it's not as hot as I think since the check valve is fed by a rubber hose and the issue is therefore moot. I stuck this here rather than a specific tech forum because it really didn't fit into any category. Thanks in advance for your thoughts on this.