Hi, I'm assembling my engine after rebuild and I'm at the turbo. I have a stock turbo boost controller but, when I disassembled the engine, the boost controller was plugged in but, not vac lines were connected? A brass tube in it's place? So, I attached a short video showing the current setup and is this ok? the pic is how it was prior to disassembly. Should I leave this as is and why is it like this or should I go back to stock? I'm not sure why this was done?