Old-School SBC Intake/oil filler question

[Bamm]

Hey guys, I have bought some really nice billit aluminum valve covers. Nice, polished, completely smooth, no holes. I am going with a flame design on the truck and will also bring the design into the engine bay, over the inner fenders and also on the valve covers and matching billit smooth 15" oval air cleaner. My question is this, I don't want to drill any holes in ther valve covers to run them. I know you need proper crankcase ventilation, (not to mention somewhere to get the oil into the engine) so I want to go with the old style oil filler neck in the front of the intake. What all is required for this? Just the intake itself? Was this all the old small blocks had for crankcase ventilation? Any help would be great...... Thanks, .....Jerry