It's possible that you might have filled up with a bad batch of gas from some station, and your tank might have alot of condensation because of that. Fill up the tank with some fresh gas.

Also...stand near the exhaust and smell the white smoke. Does it have smell to it? ...coolant smoke usually has a sweet smell to it.

Otherwise your compression numbers look ok.. but you should still pull the valve cover off and check the torque on the head studs. The head might might not have been tightened properly.