Need wiring harness for EFI Magnum

That's what I was thinking. I sure don't need the harness for the old orange box, so thinking I should get the cheaper one without the electronic ignition wiring. I just didn't know if there was something else on the elec harness that I might need for EFI.

The 94 engine is indeed OBD1, and I might upgrade it to OBD2 at some point, but for right now I just want to get it in the car and get it running! Besides, I would need to source a new computer and I believe some sensors are different.