long story short I felt over the oil fill hole while the cap was off and engine was running and i felt a good amount of air puffing out. now from what i have read in other forums this is blow by and is NOT a good thing, but nobody has a clear answer on if it is bad or normal. Some say a lil is normal and others say there should be vacum. can someone help me out on this one. I have an 03 s2k if that helps. The engine sounds fine and from what i can tell it runs like a champ. I was door to door with an RS4 from about 35 to 60 so i know power is there.