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I need a diagram on a holley quadra-jet showing what each vacum is for. And where things hook up.

That will depend on what motor, car and very significantly, what YEAR the carb/car/engine is.

I gots access to the 84 camaro 305 info if ya needs it (factory service manual and the car too). I believe it to be stock, but i know the carb is a generic parts store replacement and the engine has been changed...all by the previous owner...

There should be a vac diagram under the hood someplace...

You're going to have a tough time finding anything on a HolleyQquadraJjet considering it was Rochester that made the QJ. Good carburetor though. If tuned properly.

Actually, I've seen/worked on several Q-Jets made under liscense by Holley. As far as I can tell they are exactly the same as those produced by Rochester.

Another bit of trivia is that some Ford 460s came stock with a Q-Jet (around 1976).

Originally posted by 83_Camaro-350
I need a diagram on a holley quadra-jet showing what each vacum is for. And where things hook up.

Here's a link to Holley's tech page for the 4165/4175 carburetor, which was Holley's replacement unit for the Quadrajet.

http://www.holley.com/HiOctn/TechSer...o/4165-75.html

Hope this helps.

Dan J