In yellow, Oil overflow catch?
In Blue, Crankcase Vent!
In Red, Expansion box/filter?
In Green the exhaust deposit to not so much burn like our PCV systems!
Lessons many should learn in our period correct A's!
It may not have the check valve, but it HAS a PCV system. That's cool! I like um stock or not. I also like those little Fiats everybody turns into drag cars.