smoke out of the beather

[rockyrivermark]

question on my PVC system.

when the engine is cold I get air being pulling into the valve cover breather.
On the other side valve cover I have a new PVC that is connected to the back of the carb.
Once the engine reaches temp I get smoke coming out of the breather and oil dipstick when it's pulled.
I'm guessing that I'm getting blow by after the it warms up and tolerances open up a bit?
I'm also guessing this means I'm due for an engine build.
Any other thoughts or things to try first?
Thanks,
Mark