I have an inline 6 cyl. 250 engine with dual Carter Weber carbs on an aluminum Offenhauser intake manifold. I need to do two things: 1.) add a PCV valve and 2.) run the power brake booster vacuum hose. I don’t know where to connect the hoses on the engine or intake manifold. The Offenhauser intake has 2 hole on the side toward the firewall. Are those what I need to use? (See the picture below) Need help please! Suggestions and pictures welcome. Thanks. Glenn