Did a compression test on this motor and here are the results. Cold engine Cylinder 1 -80 lbs. 2-70 lbs 3-90 lbs 4-90 lbs. Let it idle for a bit and these are the results cyl 1- 80 lbs 2- 60 lbs 3-85 lbs 4- 85 lbs. Sounds like head gaskets ? Look at cylinder # 2