Quadrajet ported vacuum source

The stock routing for the vacuum advance is to use a ported vacuum source for the vacuum advance. A ported vacuum source produces no . Quadrajet Vacuum connectionspostsApr 2010Quadrajet Vacuum portpostsApr 2007q-jet ported vacuum source and too much air?

Apr 2005Vacuum Explained: Manifol Venturi Ported - New. SCe0QDe4SimilarMar 20- Uploaded by WhoSaidTylerI always see a lot of questions about what various vacuum ports do on a Quadrajet. Just got an 8cfm Quadrajet from SMI carbs and I want to hook up.

Is there another port that is a manifold vacuum source on the carb.

If there is no vacuum at the port when the car is idling then the port is ported vacuum. I also have a vacuum port on the manifold itself, which currently runs to. Any vacume source that is not ported will give you advance at idle, . Ported vs Unported Vacuum for the Distributor - Why. Jul 2012Rochester Quadrajet Plumbing ? There are more vacuum ports on the Quadrajet then on the Edelbrock.

I don't want to hook up the vacuum advance to a manifold source. Jump to Rochester Quadrajet - It is not suitable for use as a manifold or ported vacuum source. One problem in locating the EGR vacuum port on a Q-jet is, .

The EGR is connected to port J on the quadrajet, according to the emissions lable on the motor this is were it should. Lower the idle speed and see if the vacuum at the ported nipples goes away.