To PCV or Not to PCV...That is the question.

dano said

This. The breather hose from one valve cover to the air cleaner, PCV to intake (carb port or manifold port) on he other.

Click to expand...

Book em' Dano! Absolutely correct. I have the older open breather on my 66 (no tube to the air cleaner) When I romp on it hard, I get crankcase fumes in the car. My 70 doesn't do that but it has the tube to the air cleaner.