i have an 83 ppickup and the motor was no good so i ended up getting a engine from a friend who wrecked his 84 so its still a carb'd 22 re. The engine was in a truck that was rolled and then it was towed away as far as i know it was never fired up again and it has been sitting for about 4 months. It was lso rebuilt about 10000 miles ago.When i checked compression it was low, one of the cylinders was below 90 but after i started it up for a about 30 seconds i noticed that compression came up in all the cylinders but one of them is still at 120. When i pulled the plugs they had a lot of build up on them they almost look like they have been sitting in water for a while. I guess my question is whats with the compression going up and whats with the build up on the plugs? Any suggestions would help. thanks
