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Need carb advice for a buick 231 evenfire

Discussion in 'Early CJ5 and CJ6 Tech' started by StraightToPlaid, Mar 4, 2008.

  1. StraightToPlaid

    StraightToPlaid Ludicrous speed!!!!

    I'm currently rebuilding a buick 231 evenfire and I'm getting pretty close to putting everything back together. The thing is, I don't have a carb. The intake I have on the engine is an edelbrock intake set up for a 4 barrel carb. The thing is, I didn't get a carb with the engine.

    The only carb I have is the 2 barrel rochester currently on my 225, should I swap that and make an adapter? Or should I go shopping for a used 4 barrel? Will a stock chevy carb bolt up to this intake or do I need to find an edelbrock carb?
     
  2. jayhawkclint

    jayhawkclint ΜΟΛΩΝ ΛΑΒΕ

    Can you get a square bore intake? Holley 470TA is the way to go, IMHO. Lots of features that are "upgrades" and "mods" on other carbs.
     
  3. StraightToPlaid

    StraightToPlaid Ludicrous speed!!!!

    I'm going low budget, I'm a married college student so money is tight right now if you can believe it :rofl:

    I have the edelbrock intake, it came with the engine. I'd prefer to pick up an adapter and a used carb cheap rather than buying new parts.

    I've been doing some reading and it looks like this edelbrock intake is made for a 4-barrel square bore carb, so I guess that Holley would built up? Correct me if I'm wrong.

    I don't want a demon of an engine, a bit more power would be nice but I still need this thing to pass emissions when it's done.
     
  4. jayhawkclint

    jayhawkclint ΜΟΛΩΝ ΛΑΒΕ

    I think the Holley's beauty lies not in its performance increase on the Buick, but rather, its excellent capability for tuning a vehicle that is required to perform under a diverse range of operating conditions.
     
  5. StraightToPlaid

    StraightToPlaid Ludicrous speed!!!!

    Hmm... seems that I can't find it used those, the lowest I'm seeing is $300+ which is more than I'm spending on the rest of the engine.
     
  6. Vanguard

    Vanguard Take Off! Staff Member

    Go for a Motorcraft 2100 with a1.08 - 1.14 venturi size. It'll bolt to your 4 bbl manifold without an adapter. Look for Ford A or C code 289/302 application. Of course you could look for a 2G and use an adapter as well.

    If you search you may find some threads I posted during my research.
     
    Last edited: Mar 4, 2008
  7. Toolmaker

    Toolmaker Member

    A Motorcraft 2100 2bbl will not bolt to a 4bbl intake without an adapter.
     
  8. StraightToPlaid

    StraightToPlaid Ludicrous speed!!!!

    That's what I was thinking... This intake is for a 4 barrel square bore carb. If I'm going to hook up a 2 barrel I'd probably just make an adapter for the Rochester I already have.