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#1 |
Registered User
Join Date: May 2011
Location: Anahuac Tx
Posts: 111
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Edelbrock carburetor
I bought a new Edelbrock performer series carburetor for my 86 truck. The manual says it is not for "computer controlled applications'. My old quadrajet had 2 wires connected to it. Are these wires for a computer? Do I have to have computer control?
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#2 |
Registered User
Join Date: Aug 2011
Location: Wichita, KS
Posts: 318
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Re: Edelbrock carburetor
The Q-Jets use electric chokes. That is what the wires are for. I assume you bought a manual choke carb. If so, you will need to get a manual choke cable to do the same job as the electric choke.
I recommend getting this http://www.jegs.com/i/JEGS-Performan...oductId=762888 and this http://www.jegs.com/i/Holley/510/45-...oductId=743716. I would not recommend getting a cable that has a metal outer sheath. I had one temporarily until it contacted an exposed junction box and grounded out on the temp gauge wire lead. The above setup is cheaper too. Good luck.
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Project and Truck Specs: http://67-72chevytrucks.com/vboard/s...d.php?t=483381 |
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#3 |
Registered User
![]() Join Date: May 2009
Location: Weymouth Ma
Posts: 489
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Re: Edelbrock carburetor
I think that year has a computer controlled Q-jet. Is it a 2 wire plug on the pass front top of the carb?
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#4 |
Registered User
Join Date: May 2011
Location: Anahuac Tx
Posts: 111
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Re: Edelbrock carburetor
Sorry for the confusion, I meant in addition to the electric choke. Yes the quadrajet does have the 2 wire plug on the front of the carb and wires for the electric choke. How will lack of computer control affect my new carb?
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#5 |
Registered User
Join Date: Nov 2009
Location: Sherman, ME
Posts: 2,359
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Re: Edelbrock carburetor
Hi lanconcj,
If I remember correctly, the computer controlled Q-Jets have both a 3-wire plug (near the driver side) for the throttle position sensor and a 2-wire plug on top for the mixture control solenoid. Some of these trucks also used a Q-Jet with a dual capacity accelerator pump. They have a 2-wire plug on top that's connected to a thermostatic control switch. But no computer. If your truck has the carb with the dual capacity pump, you won't have to do anything special to run the Edelbrock. If your truck has the computer controlled carb, I think you'll also have to swap out the distributor. That's because the computer also controls the ignition advance. You can tell by looking at the distributor. A computer controlled one won't have a vacuum advance or mechanical advance mechanism. |
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#6 |
Registered User
Join Date: May 2011
Location: Anahuac Tx
Posts: 111
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Re: Edelbrock carburetor
[QUOTE=ray_mcavoy;4955216]Hi lanconcj,
Some of these trucks also used a Q-Jet with a dual capacity accelerator pump. They have a 2-wire plug on top that's connected to a thermostatic control switch. But no computer. I think this best describes my old set up.. Thanks to all of you for your help. |
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