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.

 

Im pretty sure your ok,as long as its just air and not smoke.

 

What integra said. Blow by generally means oil is getting past the rings and making its way into the combustion chamber causing a bluish white smoke that comes out of the exhaust. (usually smells like an old train set that uses oil to make smoke come out of the little smoke stack)