the wiring and computer crap would keep me from doing this, Id rather build up the 318, possibly scout out a 360 (might use a Magnum motor to base it off of but Id stay carb'd) I'd look to the possibility of building a 390 or 408..... depending on what the OP has in mind for this truck.
If you use the hotwire auto harness, it only hits the factory harness in four places.
