Compression Check: Specifications

Compression Pressure at 250 rpm
Std. 191 psi (1,320 kPa)
Limit 142 psi (981 kPa)
Difference between cylinders 14 psi (98 kPa) or less

Intake Manifold Vacuum
At Idle Speed 12.6 in.Hg (46 kPa) or less