The pcv is a check valve, if that is not keeping the pressure back, then you have a bad pcv. Also, without the air being pulled out of the block under boost, you will build up engine pressure. Route the other line from the vc to the intake before the turbo. This will pull a vacuum on the block. However, you should install another catch can on the line from the vc to the turbo intake pipe. This will keep the oil from getting into your intercooler.
you are completely right i cant believe i over looked that i need to work on that asap
Thats an odd way to route your intercooler pipes.. speaking of... where is your intercooler?