I have a freind with a GSR motor with Full JDM Type R internals, The problem that he is running into is that while coasting downhill the car is blowing blue smoke out the back. The motor was built last summer and have about 20k on it now. He thinks that the PCV system might be plumbed wrong, Could that have reason to be causing it? I thinking that it would be the rings didn't seat properly in the engine break in. Any insight would be nice thanks. He has not ran a compression test or leak down test yet.