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I take it that your using a single gauge tester,

CAB, No. This is a Summit dual gauge leak down tester (is there another type)? I am thinking about the oil squirt method, but the raw numbers don't indicate a problem. I didn't notice any leakage out of the valves, but it would have to be pretty bad to notice that. I didn't notice any excessive blow by of oil in the header evac lines either. An oil squirt would test if the rings or the valves are leaking, but the total number seems good, so neither seems like a problem from the testing ???
The heads were touched up mid season in 2008 (new cam broke in half)

I don't have a vacuum pump. I did the initial break-in with a gas carb, and ran race gas for the first two years. Then an E85 carb the 3rd year, and injection for 2009 and 2010. This engine has 616 passes on the rings! I didn't want to say that so people wouldn't judge the condition on time, but rather condition. And the condition is pretty good? Right???