When I built my Cheetah tribute I wanted to use C2 Corvette finned valve covers and they have no openings for anything. After much research I made my own PCV system for the usual reasons: releasing crankcase pressure to preclude
oil leaks at seals, drawing clean air into the crankcase to reduce contamination of engine
oil, and reduce harmful emissions into the air. I mounted a fitting into one valve cover with a baffle inside to prevent liquid
oil being drawn out. I drilled a hole in the intake manifold just below the carb for a PCV valve, and connected it to the valve cover fitting with a hose. Lastly, I attached a breather to the other valve cover that was large enough for adding oil, and had a filter element to clean air being drawn through it. The key with a custom setup is to get a PCV valve suited to the engine. So far, so good.
