Does anyone know what the compression should be in PSI for a 428 CJ. I did a test last week and most cylinders were about 90-100 psi. This is by spinning the engine with a long handled torque wrench from the front pulley. Someone said 150-180 was normal.
If this is normal do I need rings. The engine has about 91,000 miles on it. Does not seem to burn
oil. All plugs looked tan and clean. thanks, mark