Replacing my distributor first time

Sorry cant help with the vac can issue. The pics 65val posted of the 2 different " clocked" distributors were 2 of mine. One from 273 and one from 360. The difference between the 2 distributors equaled me moving plug wires ahead one post on the cap.
For example 18436572 was now 84365721.
Personal preference but I have/had no desire to move the gear unless absolutely have to.