[john]

Did you do the compression test on a very warm engine? I beat on it and then do the test to make sure it is warm. I would try another gauge also. My car (stock block) clocked 170 across the board on Elites compression gauge (dynofest last year) and high 150's on my snap on gauge. Some gauges read higher than others. High compression can also be due to excessive amounts of carbon in the combustion chambers. I blew my dipstick out at ~20 pounds on the big 16g and do not now after crimping it with more boost and a larger turbo.