I think I should give up on the compression test and move forward on trying to figure out why this engine won't run. I tried 3 different testers and they are all different. What does a person have to do to take compression readings? The tester I started with is one I bought several years ago and probably used it a half dozen times and it has been in the case an that is it. I stuck it in my good running 8hp briggs and stratton snow blower tonight and could not even get 70psi on it. These things are quirky. I got the valves all adjusted and put back together and ran it tonight and there is no blow by comming out the breather at all. Absolutely nothing! I am going to start with the primary carb on saturday and see what I find. The engine starts fine and runs on high idle, once the choke opens it won't run worth a crap. I just got this car and will have to spend some time with it.I have done many compression tests over the years, why I can't test this engine is beyond me.