distributor question

They are a copy of a Bosch dist used on many Aussie cars in the 70/80s: Ford, GM, Mitsu, Nissan. They are/were extremely reliable. I would not hesitate to use one & I have used the 4 pin modules on various cars. They switch a little more current than the GM HEI module & actually have the same mounting centres.
I have no doubt an OE Bosch module is reliable. But these copy of a copy distributors are not. Module aside, the lack of adjustability, poor bearings, sloppy tolerances, aren't worth the risk. We got in a batch of these years ago to test in a shortage, I scrapped or returned 95% of them. Wouldn't even consider trying them again. Every country has its good and its bad, despite what continent they are on. These, are bad.