The problem we have here is it's an aftermarket setup.

I would suggest tapping a manifold vacuum fitting into an intake manifold for the PCV (like the factory did) and run the brake booster off the vacuum fitting at the base of the carb. I would do this to prevent too little vacuum for the power booster due to that one nipple pulling for BOTH the booster and the PCV and 2) you do NOT want to be pulling oil fumes into your carb plate.

My Edelbrock intake manifold on my Ford 302 has flat round areas on the runners for drilling and tapping holes. I don't use them because my Ford Motorsports air cleaner has a provision for a PCV hose.

P.S. Everything I have read about Pontiac engines says DON'T use a Torquer manifold. The Torquer's work best at a power ban too high for most Pontiac motors.