Distributor Mechanical Advance

AJ/FormS said

The cam part looks the same to me. I think the reluctor just needs reindexing. The driveshafts are different tho

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Kind of what I was thinking. Yes, to slots in the reluctor, one each for cw and ccw rotations. Vacuum cans, shafts, weights etc are different for sure. I have just never compared the advance slot shaft.