OG 73 Duster

You are well on your way to EFI. The 5.9 is just the new 360, it has been done lotsa times. So getting the parts should be easy. the biggest thing I have heard about the EFI is where to put all the wires and ECU. Some I have seen behind the glove box. I have the 360 to go in mine but no EFI. Good luck.