Diegokid Your readings are a little low for my taste but you have left out some of the important things. Was this test done wet or dry? What piston rings are on the pistons? Normal or low tension? Cam shaft, how big and what is the LSA? Also how must overlap does the motor have? As said by others, I believe a leak down check is a better test than compression. You are within the 10% high to low for 8 cylinders but didn't break each one down withthe numbers. I run 180 thermostats is what I run in all my cars and trucks. I know some FORD motors like alot of heat in them. Your engine
oil may not be getting up to temp if the motor is running this cool. This will effect breakin of he rings and valves. You also my cause a excessive carbon build up on the valves. What color are the spark plugs when you checked them? We need to do the basics first before going crazy. Cam specs would help also. Rick L.