PCV mod:
Theory:
All engines burn oil and some burned gasses blow by the cylinders. These gasses can accumulate and cause enough presure to blow the valve cover gasket. Since it is "bad" to dump these fumes in the atmosphere, they run a rubber hose to the Throttle body that sucks the oils and gasses and burns them. This heats up the intake and makes it really dirty! (this is where all the black gunk comes from)
How to??? Unplug the PCV from the TB (this is a rubber hose the thickness of your finger that goes from the left part of the engine to the bottom left of the TB.
Now, just turn the pipe pointing it downwards and block the hole on the TB. To do this, i used Magic tape (it is a streatchable black tape). That's it :)