Carburetor Suggestions for Turbo 231?

[231T]

I have a 1983 231 turbo from a T-Type Regal.

The engine was in rough shape, but now has been machined and I would like to pick your brains for recommendations for a carburetor, as I wish to keep the draw-through turbo setup. Unfortunately, the original 4-barrel feedback quadrajet has been beaten to bits, and the computer was missing when I got the motor.

I've been advised to look into quadrajets or other 4-barrel carbs with a vacuum secondary to help account for the change of pressure under boost.

Any feedback would be great!

 

[WE2Regal]

You'll need a Holley carburetor that is boost referenced and a Quadrajet to Holley adapter plate to mount it on the upper intake manifold. You'll have to speak with Holley or a carburetor specialist to get a recommendation and one set up correctly. There is a small raised pad on top of the '82-'83 aluminum intake manifold in the correct location needed that you can drill and tap to screw in a fitting to get a vacuum signal for the Holley to work. Beyond that, you still have several problems to overcome. Without a computer, the '83 distributor won't work. You'll have to source one for a non computer controlled engine. These carbed draw through turbo engines are prone to detonation. Without a computer with a knock sensor hooked up to retard timing , you'll have to play it really safe with boost and timing. Especially on regular pump gas. Or a company called J&S Safeguard makes an ignition system that has a knock sensor.

 

[WarWagon]

Definitely look into J&S Safeguard to handle ignition. There's an older version of a holley carb that has spread bore already if you wanted to go that route without adapters for hood clearance.

 

[231T]

I have made new discoveries about my engine and the car that now accompanies it.

Both are 1981 (non-matching), and I have a Turbo Control Center on hand now. I had my old quadrajet looked over by a former turbo Buick tech, and he found the carburetor is fine, save for needing rebuilt.

I've been looking for a gasket set, but so far, none look like the gaskets I pulled out of it. Does anyone know where I can find gaskets that fit an '81 E4ME Rochester?

 

[WE2Regal]

Nice catch matching up that gasket kit before installing them. Are you trying to use the 78-80 turbo control center with a CCC carb? The 1981 carb would be computer controlled and won't work with that module. You would need an older 78-80 carb that enriches from vacuum coming from a PEVR valve in the intake manifold.

 

[231T]

Truth be told, we aren't sure what year the TCC came from, but the carburetor is original to the motor. I've been told there should be a module under the dash somewhere, but I haven't been able to find it yet.

That being said, the dash is slated for removal to prepare for the new heater and A/C system.