I've got a 86 Lebaron with the 2.5L and was wondering what's involved in either adding a turbo or swapping in a 2.2 turbo motor. If swapping the motor, I'd be sure to get the 2.2 wiring harness and computer. Do I need to do anything special to the 2.5 wiring harness to make the 2.2 work in the car? Can I use the existing 2.5 transmission or is the mating surface different? Also, is there anything to be gained (or lost) in terms of fuel economy? What do you guys get at today's highway speeds with the 2.5 NA or the 2.2 turbo? Thanks.