Originally Posted By poorboy
So, I can use my 90 OBD-1 computer to fire a port injection Magnum, or do I need the 92-95 computer?


The 92-95 magnum port EFI computer and engine wiring harness is totally different than the old TBI system. While the 92-95 magnum system is the easiest to swap, and is OBD-1, nothing from your old TBI system will be able to be reused.