PCV issue

I also forgot to mention that I have cast iron heads. Below is somthing I found during a search of the web for an answer about lash:

You can take the "hot" setting given to you in the catalog or cam specification card and
alter it by the following amount to get a "cold" lash setting.

With iron block and iron heads, add .002"
With iron block and aluminum heads, subtract .006".
With both aluminum block and heads, subtract .012".

http://www.wallaceracing.com/valvelash.htm