the question i have is how hard would it be to swap the 5.0 engine w/ efi and aod trans into a 64 F100. what would need to be done about fuel lines? fuel pump? fuel relays? what other problems mite occcer. i have the engine, trans, fuel pump, and ecu for map sesnor. i know i would need the computer wiring harness and trans wiring harness what else would i need? any help would be nice. the truck now has a 6cyl with a four speed manual trans.