Im building a SBC from the ground up. Its got almost everything new inside, but I've realized I have a problem. I'm using an old Edelbrock intake manifold with an oil fill tube in the front. I have cal-custom finned valve covers with no holes for vents or PCV valve. I'm using a block from 1970 that has no provision for a draft tube. What can i do to have enough crankcase ventialtion without sacraficing the looks of an older small block? I've seen in small books the idea of a vent in the oil pan? Or maybe hiding a PCV valve?