Compression Numbers

Ideas anyone??

I don't trust compression testers any more. Rent or invest in a leak down tester and you will be provided with more accurate readings that will tell you more... like where the problem is... rings, valves or headgasket... I think they are less than $100 for a nice one or you can get creative and make your own using (2) regulators and (2) 150psi gauges... powersix