The power plant in the Willys is tired. Its out of a 78 Suburban and had a good many miles on it when it was put it. Got it cheap so we used it. The 89 Suburban has had the motor swapped out once and has less than 100K miles and runs great. I am going to sell off the current 350 in the Willys and the rest of the Suburban so I'll have some extra cash. I know it can be done. I'm just trying to get an idea about the wiring for the computer and all.