Anybody else have problems with blow back? I have a fairly Stock 2.2L LT and am having issues with it blowing back.

I have a CAI on it and a muffler, not a full cat back. I popped the hood at lunch today and their is oil stains on the valve cover where it looks as is oil has seeped out slowly over time. I only have 32,000 miles on the motor and I don't really beat on the car.

I'm gunna buy a new stock intake tube and take it back...

Any thoughts?

 

36k on a LT3 and 0 issues with oil
tranny, tires, wheels, 2 sets of rotors/pads, driver seat, trunk, remote start, steering column..

lots of problems here, but no issues with oil or blow back

 

moved to correct section

 

So i have lots of carbon build up on the driver side and there is a small bit of oil on the back passenger side of the valve cover. There is also just a trace of oil on the intake pipe from the hose running off the valve cover.

I am thinking it's a PCV valve issue, but was hoping for others inputs...