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S10 - 85 -2.8L -Vaccume/carb Help

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  • S10 - 85 -2.8L -Vaccume/carb Help

    Good Day All
    So i have a 1985 s10 blazer with a 2.8v6. I want to change the carb and make it as simple as possible.(eliminate all unessential components) the current carb is computer controlled which is useless as i think most wires are cut. there are also vacuum lines all over the place and i would like to simplify them. I am looking to find out what do i really need for this engine to run good. Are there any good carbs that will be a direct bolt on. also i am looking to find vacuum diagrams for engine in which will reflect the simple style - no electronics except the bare minimum.
    Any Ideas....ps i have looked everywhere with no luck. this is when i ask for help.
    Thanks

  • #2
    The Holley 390 and Weber carb conversion are the most common. The Weber offers the best drivability. You will also need a non computer controlled distributor from an 82 to 84 truck.

    All you should need after than it a vac hose to the distributor and EGR valve. You will also need a hose for the brake booster and the PCV.
    1993 EXT. CAB, 3.4L V6 TBI, 5spd manual. Sonoma
    1990 4Door, 3.2L V6 TBI, 5spd manual. 4X4. Trooper
    Because... I am, CANADIAN

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    • #3
      what is the weber model # and are these carbs direct bolt ons?

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      • #4
        Weber Part No. WK490 http://www.webercarbsdirect.com/

        Check the Holley website for fitment of the 390.
        1993 EXT. CAB, 3.4L V6 TBI, 5spd manual. Sonoma
        1990 4Door, 3.2L V6 TBI, 5spd manual. 4X4. Trooper
        Because... I am, CANADIAN

        Comment

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