Well, the smoke out back is light in color, not dark. All the plugs reveal the same thing: fresh engine oil on them all. And as I mentioned, the top end is new.
Does any one trully believe that the PCV could be the culprit? I ask because since the new heads, I am running dual breathers and no PCV. The head builder said this is no problem as the circle track cars do this all day long. But I wonder if I ought to try it. Thanks again for anyone's input on this.