89 full size bronco

kevin
again thank you for the info on my 59 ford door skin

new project 89 bronco rebuilt sup and 4″ lift kit. there is a 302 efi in the truck pulled the plugs and it does not look good for the engine has a lot of miles. i do have a 351 high performance engine sitting in my shed waiting for a reason to use it, well the time has come. my ? is what do i need to do to make the change. i do have the complete front runner system, new injectors and i believe that the 302 harness will work thats all i really know.