[Accelo]

Look at the 1963 models, it is close to the system you have shown.
The adapter at the rear of the block looks like a reproduction of the one used on 63 models. Some of the Corvette's had a hose that comes off the oil fill tube and goes to the air-cleaner. If you use that system you don't need the breather on the fill tube. It can be caped like the Corvette. The fill tube is available in black or chrome from Corvette dealers. You could use either system. Just depends on the air-cleaner you prefer to run.