Rotor/Reluctor Phasing Question

Sounds wrong. Drill a hole in an old distributor cap, aligned with #1 post, and view the rotor tip position with a timing light (on #1 plug). It should be near the hole. The position changes slightly (~10 deg) with vacuum advance, but shouldn't change with centrifugal advance. If it isn't close, you can get mis-fire to another post, termed "rotor phasing".

For more info, look for youtube videos, or download the Crane XR700 manual online. There are after-market distributors (MSD, ...) where the mechanical advance does vary the rotor position. Those have a solid shaft and a wide rotor tip, unlike the factory Mopar distributor which has 2 shafts, spring-loaded.

If you have a phasing problem, Rick Ehrenberg sells a fix on ebay for your distributor.