Stock Magnum EFI with a cam upgrade.

I did not think the 93 Magnums with the single connector PCM were programmable.

The OBD2 PCM with three connectors from about mid 96 on are definitely programable. This would be a good time to figure out for sure if you want to keep the OBD1 setup or switch to an OBD2 setup before the engine goes in and gets wired up.