I have completed the compression test on my 5.3L. The engine will soon turn over 170,000 miles. The values are Cylinnder, 1st crank, and max: 1-120,190 2-120,200 3-110,200 4-120,200 5-100,200 6-120,195 7-110,200 8-110,200 I don't know what is a "good" value. The Chilton's book states that the minimum allowed is 100psi. Does this mean on the 1st crank or the max:rules:? What is an average for our 5.3L?