So you have a hose that goes from the vacuum pump and front crankcase vent, to the valve cover?
But it doesn't go on towards the intake?
That's odd. I think there is usually an upside-down T port bolted to the front of the block with one port pointing up and one aimed toward the front of the car. On the '79 with the upgraded PCV hose up goes to the valve cover and/then intake.
The port aimed forward goes to the vacuum pump hose you are deleting.
The stock valve cover for that early PCV setup has a metal port aiming straight back towards the intake.
Many valve covers are setup with a rubber grommet pointing straight up, but that won't work right for the stock NA intake.
If you still have the valve cover and intake from the '79, that can be swapped over.