If you bead blast it without "COMPLETELY" dissembling it you can have problems.If it is a dual point Prestolite you will end up with glass beads in the breaker plate bearings .Also,there is a felt wick behind the oil filler,you will also have glass beads there.If you remove everything and rinse it with a good solvent and blow it dry you shouldn't have a problem.Also,the tag is aluminum not brass.

If you have a Chrysler distributor,same precautions.