ok on the PCV valve breather box on the back of b-series block, WHICH line does the valve itself run to....the IM one, or the one off of the block?

ie
(A)

[block] ----- =hose=lBOXl=== L valve ====Intake manifold

or

(b)

block ---==L valve ===lBOXl ===hose===Intake manifold

???