Are there any diagrams or charts of the Vacuum ports on a quadrajet for my 84 Hurst? I don't know where all the hoses would go to if I put a different carburetor on it . Thanks James

 

Maybe this can help. There should be one of these under your hood on the fan shroud. It doesn't show the power brake hose connection on the back of the throttle body, or how the hoses actually tap in. The diagram is accurate.



The following pic is of my 87 442. Essentially the same thing as the 84 H/O vacuum line setup.

Legend:
Red: Bowl vent to Canister Control Vent (CCV) valve.
Blue: To/from canister vent connected to the bottom of the canister control thermal vacuum switch valve.
Green: CCV valve purge vacuum on throttle plate (vents bowl vapors to engine when running)
Tan: CCV main vacuum port (closes valve to stop bowl venting to canister when engine running). Note this comes off the T port to the primary choke pull off in a round about way to the Y connector in the air cleaner vacuum line.
Orange: with the "VD" designator on the hose- this is your PCV hose.
Unmarked hose under the TPS connector: This goes to the EGR solenoid.

 

And why, pray tell, would you want to put a different carburetor on it? What's wrong with the quadrajet?

For the money spent on a new and different one, you could have your own carb rebuilt by a reputable carb builder.

But, if you want to go another carb route, if your carb is an original 17084554 carb, you can toss it my way instead of trading it in for a core.

 

If you put a different carb on a CCC 307 that isn't a direct replacement computer-controlled Qjet, all sorts of collateral damage will happen due to screwing up the computer system. You'll lose distributor advance, for one thing. Changing the carb means disabling the ECU, changing the distributor to a conventional HEI, and disabling all the other computer-controlled functions. Get a factory service manual and follow the CCC system adjustment instructions EXACTLY, or the car will never run right.