I may be getting older, but I refuse to grow up!
Join Date: Jun 2012
Location: PACIFIC N.W.
No octane rating on the gas pumps?? Do you have regular and premium? You need to ask or do some research.
At basically sea level, I would rebuild with a CP 11:1 and run the best gas you can. If you find your gas is less then 90 octane I would machine around .030 from the piston dome. You may see a slight power loss but without detonation. Get a Stage 3 cam and a +3 throttle body will give more power.
Run a (diamond) hone thru the cylinder to see if it will clean up.
I also saw what looked like bent valves, be sure to check them.
Be sure to check the head for warpage and always use a factory head gasket.
'19 Can-Am X3, RS Turbo, 172 HP, 1300x15 STU #2 paddle, Tribute front, DynaTec controller, cat delete, GTP blow off valve, custom flame wrap, Bent Metal windshield, Blazer wiper, rear window, 48in LED light bar, 14in LED light bar, GTP LED side lights, S3 shock tower brace, aluminum rear pull plate, 5K Badlands winch, dual batteries, 5ft lighted whips, Rugged radio and intercom, interior lights, rock lights, chase lights, over $200 additional switches, YES, street legal with dirt tires.