General Category > Quadrajet Carb Talk and Tips

Found a Dual Quad intake at the salvage yard for $60!!

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JasonM:


The only issue is that it is drilled for WCFB carbs.. I want to use Q-Jets..

Could not believe it when playing around with a spread bore to square bore adaptor plate that the WCFB has the same bolt patter as the Q-Jet!

Here is my Question: CAN I tune  two Q-Jets to work where there used to be WCFB's?

Any and all perspectives, experience and opinions welcome.

Mudsport96:
Im sure with some work you could get it. But man, that is a whole lot of carb for anything under 400 inches.

JasonM:

--- Quote from: Mudsport96 on March 29, 2022, 10:11:11 AM ---Im sure with some work you could get it. But man, that is a whole lot of carb for anything under 400 inches.

--- End quote ---

Thanks for the vote of possibility... I have been thinking of limiting the secondary side a bit. I will continue forward, and see what happens..

von:
Just my .02: I don't think the secondaries would be much of a problem since Q jets are more or less self regulating on the amount of secondary airflow, "on demand". Q jets were factory carbs on some of the weakest 305's GM made. Might be a little tricky to get the secondaries to be in synch with each other. The biggest problem I can see is rigging up a linkage to open the primaries of the back carb first and delaying the primaries of the front carb to start opening til the rear primaries are about 1/2 way or so open. Of course there would be the mods to fit the manifold and fabbing the fuel lines, air cleaner, etc. Then there's the inherent shortcoming of a tunnel ram on a mild street engine.

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