You have one of the early MSD distributors before they started zinc coating them. I believe you can call support, and they will replace it for you. That causes ignition issues and is a known problem.
You could disassemble the distributor and clean it up, shoot it with a coating, but it could effect the reluctor and pickup. (Don't spray the pickup). I still think they will replace it though.
Not sure I would trust those wire diagrams from that website, I would be looking at the factory diagrams, which are available, the factory service manual does have diagrams, and is basically a very good reference, pays for itself in time.
I wouldn't worry about the diagram, since everything is working. They probably used a generic or 'chevy' diagram.
The 'dual crimp' wire ends are fine, and prevent the core from breaking during installation. If you're making them yourself, push down on the core with a needle or something so it is captured during the crimp, and you will be fine.
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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
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1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
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