Yes sir the early was 11.24 to 1, the rest are 9.9 to 1, still plenty high. All are hump free. I have a new cylinder on mine, it did not lower the compression. I ham fisted the threaded intake boss. An expensive lesson.
The 180 has 9.56 to 1 compression as per Clarence Lee. Chris Chianelli doesn't bother with CRs, he mostly crows about OS-f plugs.
Last edited by Hobbsy; 12-21-2020 at 03:47 AM.