I have a well used 81 Blazer w/ a 305 motor. The engine smokes quite a
bit, and the smoke doesn't change based on temperature of the motor, or
load. The smell isn't that bad, but it 'burns' your eyes in a garage.
The smoke is a bluish gray in color
I rebuilt the carb, changed all the plugs/cap/rotor. None of the plugs
I am thinking it's heavily worn valve stems, but I am also concerned
it's worn rings. Is there a way to identify one or another?