Hey guys - I was wondering if any of you have taken the engine oil filler cap off when the car is idling. My car seems to have a shit load of air coming from there, and oil leaks around the rocker cover seal. I know this is probably from the blow by gases but it seems excessive. I did a compression check and the first 2 cylinders were 225Psi each and the second 2, 200 psi each. The first 2 are above what the manual suggests (carbon build up??). Do these motors have a tendancy to blow headgaskets?