Compression Ratio Question

Thanks NM. The dome above the flats are .002 of all being equal, I step miked all of them when the heads were off. Im not real sure I have alot of faith in the compression tester. One time I did #1 and it was over 200. Then I checked it again and it was 175. I know what your thinking,,, Ya dumb a-- toss that gauge out and kick it in the dirt. In order to get dome volume I would have to pull the heads off. I should have done it when I replaced a blown head gasket but I forgot. I will get another tester and try it again. I thought the numbers were kinda high, I was figuring on 160 to 170. I will borrow a different tester and try again