Here's some I made.
First one is a Holley carburetor stand. Hey don't laugh, it works.
Second one is a spark plug air hose attachment tool. When heads are on engine, this holds valves closed for changing valve springs or seals.
Third one is an engine plate for pulling engines. This one I made but didn't weld. I don't trust my welding skills.
Fourth is a tool for turning the adjusters on an 8 3/4 rear. A fine example of my early welding ability. LOL
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