[66sprint6]

I was lucky to get a great deal on a '68 factory cast iron manifold, a factory air cleaner and chrome valve covers. I'm putting the whole thing together on our '67 so that I can hook the facory cruise control back up. The only thing that I'm missing is a carburetor. What range of years will work, to have the same shape of throttle arm that the bracket will bolt to? With what we are doing, numbers matchng is not a concern.
Also, What does a runnable carb cost these days? I've seen some used but I believe that a nicely rebuilt one would be the way to go. This would be buying outright, no core.

[Half-Inch Stud]

Id get a Q-JET year that matches your compression, and park an Original Q-JET on the rafters.

[77 TRASHCAN]

Some of the best Quadrajets are 1976 and newer models, until the computer controlled units came out in about 1981.
Most of these c ame with a hot air choke. That can be converted to an electric choke, easily (Clif can supply electric choke, and ALL parts needed).
The APT system on these is easily adjusted, most everything about these models is better than the earlier models.
I buy these carbs at swap meets, when possible, since I know what they are capable of.

[1968GTO421]

I went with a Sean Murphy Quadreajet for my '68 GTO. It'a a work of art and runs great. When I talked with Sean several years ago to order it, he emailed me a questionaire to complete to give him a guide to go by. I'm sure he could answer any questions about cruise control on it. He ftequently uses 70's model carbs with electric chokes so no messing with the choke stove on the intake.. Here's his website:

https://www.smicarburetor.com/produc...ster-quadrajet

[242177P]

Originally Posted by 66sprint6

What range of years will work, to have the same shape of throttle arm that the bracket will bolt to?

67-70. Technically, you could have a later carb fitted with an earlier throttleshaft, but that seems kinda pointless when there are still plenty of 69-70 carbs (like the 7029268) out there.

[shaker455]

Originally Posted by 66sprint6

I was lucky to get a great deal on a '68 factory cast iron manifold, a factory air cleaner and chrome valve covers. I'm putting the whole thing together on our '67 so that I can hook the facory cruise control back up. The only thing that I'm missing is a carburetor. What range of years will work, to have the same shape of throttle arm that the bracket will bolt to? With what we are doing, numbers matchng is not a concern.
Also, What does a runnable carb cost these days? I've seen some used but I believe that a nicely rebuilt one would be the way to go. This would be buying outright, no core.

Sounds like you want a period correct unit, do you want a divorced choke like the factory offered then or does an electric fit your needs?
You can get the correct shaft and linkage to fit a BOP unit of that era..

[shaker455]

Local guy not me selling 68' Pontiac Qjet:
https://www.facebook.com/marketplace...1-22c7d9d4812d

[66sprint6]

Regular choke, or electric choke for the '67? I've seen where a lot of the rebuilders upgrade the carb with an electric choke. Recommended? It's all the same to me, but if the electric is superior than I'd probably go that route.

[25stevem]

Stay away from the 67s if you can.

They had a float leverage condition that made them prone to flooding out.

[Cliff R]

Any Q-jet made prior to 1969 will have "issues" that can be difficult to get past without professional help.

There is a chapter in my book on carb selection. Good place to educate yourself on how good the later carburetors are vs the early units, which ones to avoid, common issues with them, etc....

https://cliffshighperformance.com/pr...et-carburetors