Rebuilt the head on my 2.0 twinspark at the weekend started it up and blue smoke is emitting from the exhaust, I have heard that the oil feed hole in the inlet manifold between 1 and 2 can cause this. engine runs lovely a bit tappety at first but has since quietened down the only prob now is the smoke. I need to do a compression test to definitely rule out rings etc but all comp readings were ok before 170 - 180 psi. Im a bit stuck what to do. Any advice?