What Is Normal Compression for 1.7, Compression Ratio vs. Tester PSI Options

[7TPorsh]

Years back when I bought my car it was presented to me (the newbie 914 guy) that the car had a 2.0 rebuilt motor in it. He had a receipt and everything. I thought cool, a black, running 914 with a 2 liter.

A few years later after becoming "informed" here at the world I see that I have a 1.7 block from 1971 (per engine number; probably not the stock engine it came with) and i have the angled plug heads so assuming they are also 1.7. So viola, 1.7

Car has dual Weber 40IDFs and also assume I have a cam to match. Car runs good and gutsy but i don't have any comparison. I'm trying figure out if my engine is old and tired or is it healthy and it's maybe not tuned perfect.

I read about compression ratio here and see numbers like 165, 180. i did a test on my car and it's an even 106 on all 4. I don't see any burning oil.

So I read that the 1.7 was a high compression engine....what does that mean? How does compression ratio relate to the compression tester numbers of 106. ex: 8:1 CR vs. 106psi