Stop in for a cup of coffee

WTruo said

I think my 360s hurt! I was checking compression and cylinder #7 shows a max of 70, #5 reads 120. And as of recent its been idling funny. It pops and backfires then dies. I squirted some oil to see if it would change but it didn't. My battery also ran low so its charging.

Click to expand...

Look into a valve or valve seal... If the cylinder is low and a couple squirts of oil don't increase the reading, then your cylinder and rings are ok, look at the valves or valve seals...

A leak down test will verify which cylinder and which valve...

Or pull the suspect head, leave spark plugs in, with head upside down - fill each combustion chamber of the head with water and see which one leaks...