Hey all, I'm in the process of a rebuild and I've always noticed this strange port on my exhaust manifold, but never known what it is. It has always leaked a little bit of exhaust. Is it just a manifold temperature sensor that someone once had installed or does it have some other purpose? I'm thinking I'm just going to take it out and plug the hole. Or is it something that I should be looking to replace? I've included a picture for your viewing pleasure.
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