Intake ports after 1 year / 14k mi with port injection

[veer90]

Just curious as since I just a walnut blast, and looking how this system works, do you have vapors that are recirculated into the intake causing the buildup? If the heads are blocked, and dirvirters removed, we're is the oil vapor entering from?

You still get blowby and crank case vapors. It's entering from after the throttle body instead of the head ports on my setup.

 

[Hydra Performance]

Don't forget vapors from the valve guide seals and the crankcase on the overrun as well.