excessive 340 crankcase pressure

Hey Rusty rat rod, I like the diagram you posted.
Don't like that fancy rubber hose going to the air cleaner, well just because I am old.
How bout a diagram with the old down draft tube? The new green people would ****.
The tube that bolted on top of the lifter gallery on the rear of the motor and vented down below the motor cut off at a angle so as it could such air out of the crankcase.
I think Ford was good for that.