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As I was working on an Olds 350, I noted that someone had... hammered? Drilled? Shot? ...this hole in one of
the valve covers, and run in this actually kind of interesting threaded fitting. It's a hollow female pipe-thread fitting,
with an almost wood-screw coarse male thread and a fiber washer. What it was originally intended for I have no idea.
What the guy had it hooked to, I also have no idea.





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