Question about Chevrolet Suburban 1500

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How do i install a carburetor on a sbc that was tbi? I have a 94 chevy burban and I am changing it to carbureted, i have a new manifold and distributor but i dont know where all the connections go.

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You'll need to run ignition power to the new distributor. And you'll need to run a vacuum hose off the carb for the distributor vacuum advance. Really, very little of the original wiring will work. You'll need to connect the fuel pump to the vehicle fuel line.

Posted on Jun 03, 2010

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On a 1987 nissian sentra tbi system the pump is bad and iam going to install a universal pump and one spec i looked at said the max pressure shoud be on all 2v 3.8 lbs and the other said 34 lbs what is 2v...


2V must be referring to a 2 barrel carburetor, which is what I have in my 1987 Sentra. The carbureted version uses a mechanical pump on the engine, not an electric pump. That is why the pressure is only 3.8 lbs. You are lucky to have TBI. the carbureted version is a pain.

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Swapping an edelbrock 750cfm to a 500 or 600


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I got a 86 Nissan 720 4x4 it got a tbi that is giving me problems can I put a webber carburetor ?? And just do away with the plugs I need a tps sensor but i wanted if I can take out the throttle body and...


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I have an 89 chevy 1 ton dualy and converting the tbi to an edlebrock 750 and need to know wich fuel line is supply and wich is return and if it is a vacume advance or not


The larger diameter fuel line is the fuel supply line, and the smaller diameter fuel line is the fuel return line. The distributor for that vehicle should have no vacuum advance on it, and the distributor should look like the one in the image below.

The fuel pressure for that carburetor (or for any other carburetor) should be around 7 psi only, and if the fuel pressure exceeds more than 10 psi it will start to push the fuel past the needle and seat and it will flood the engine. If you are going to use the same fuel pump that was used for the TBI then you will need to install a fuel pressure regulator, preferably one with a fuel gauge, and set it for 7 psi.

Of course you do know that the vehicle will never pass an emission test once you have converted it over to carburetion, and the MIL (Malfunction Idicator Light) or "check engine light" will most likely be on constantly. Let me know if you require any further assistance.


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My fuel injection carburetor in my 94 suburban is getting to much gas how do I trouble shoot it?


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Step by step instructions on removing intake manifold on 1992 buick roadmaster limited


  1. On models equipped with airbag, disable airbag system as described under MAINTENANCE PROCEDURES/AIRBAG SYSTEM DISARMING .
  2. On all models, disconnect battery ground cable, drain cooling system and remove air cleaner.
  3. Disconnect accelerator, transmission and cruise control linkages, as equipped.
  4. Disconnect fuel line from carburetor or TBI unit and remove fuel line clips as needed, then remove carburetor or throttle body from intake manifold.
  5. Disconnect necessary vacuum hoses and electrical connectors, noting position for installation.
  6. Disconnect upper radiator and heater hoses from manifold.
  7. On Cadillac Brougham models, remove thermostat and housing.
  8. On all models, remove distributor.
  9. Remove ignition coil, AIR pump, cruise control servo and brackets, as needed.
  10. Remove alternator upper mounting bracket and EGR solenoids.
  11. Remove manifold retaining bolts and the manifold.
  12. Reverse procedure to install, noting the following:
    1. Ensure surfaces are clean and dry, then apply 3/16 bead of RTV sealer on each block ridge and apply suitable sealer around water outlets, install gaskets and secure gasket position by extending bead of sealer approximately 1/2 inch onto gasket ends.
    2. Install manifold and retaining bolts, ensuring areas between case ridges and manifold are completely sealed.
    3. Torque manifold bolts to specifications in sequence shown in Figs. 2 and 3.
    4. After installing carburetor or TBI unit, check to ensure no fuel leakage is present.
  1. Rearm airbag system as described under MAINTENANCE PROCEDURES/AIRBAG SYSTEM DISARMING

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Have an 88 Chevy c1500 305 Eng i want to change tbi to carburetor


2bbl intake will not fit 87-95 small blocks heads are diferent from pre 86.the center bolts on your manifold are angled different than the front and back bolts.your 2bbl manifold has the same angle bolts front to back.i converted my buddies 89 to carb,had to make adapter plate for carb.but to make a long story short there is a lot of power loss and fuel economy your better of with tbi.

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Yes, the allen bolts need to come out.

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