Compression Ratio Question

Thanks Marco, I kinda figured it was 10:1 or 10.2:1 I still think my gauge is off. Was going to do it today but I couldnt find my piston stop, checking TDC just to make double sure. SO I took the car to the shop, washed it and parked it until tomorrow. I didnt know the domes were .407. Even with the dome milled down, those are some gawd-awful ugly lookin boat anchors. I also have iron heads, Js with 2.02 valves and mildly ported