I just finished the swap you are talking about. I started with an 86 f150 motor and took the upper and lower intakes off of a crown vic and put them in its place. The only prob I ran into was I had to drill out a hole for the knock sensor on the drivers side of the lower intake, and had to lengthen a few of the sensor wires(nice thing only had 1 o2 sensor too ) I took it out this week end and raun like a champ. I left the whole harness intack from the truck and everything seems to work fine, no comp codes, no nothin.