ONe of my winter upgrades to my 69 is going to be power discs. The other is a 4BBL intake and a Q-Jet. I need to know the source in which the booster got the vacuum from, the intake, or the back of the Q-jet. If anyone has a diagram of it, I'd surely appreciate a copy so I can route it properly.
Edit: If anyone has a 69 small block car with a glide and power brakes, a picture of the engine, particularly the back of the carb and that area would help me out quite a bit. I forgot about the powerglide linkage and how that connects.

it can go to either. the correct way i think was to the carb. but either work. you can even run it to a vacuum reservoir which feeds off the carb or manifold. usually just done when the motor has a real big cam. because you cant pull enough vacuum.