So I am going to plug the AIR fitting using some plain bolts will high temp gasket maker work here? (oh btw this is on RK Sport headers)

 

IM surprised that you found bolts that will plug your AIR for your exhaust. I couldnt find any. I took the valves, cut them off about 1.5 inches away from the nut and brazed it shut. Works real good. I dont think that high temp copper gasket would help at all. You need anti-seize and a solid bolt to plug it off.

 

dont use anti seize, it will melt down and work its way down and toast your o2 sensors, aks me how i know

 

He didn't. That is why he is scrambling for sealer to patch the gaps. There are the correct thread pitch plugs available though. They are custom made.

There should not be any problem using anti sieze. It has a purpose, just not meant to seal, that's all.