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Holley 4010 question

Discussion in 'The Hokey Ass Message Board' started by tstclr, Jul 29, 2008.

  1. tstclr
    Joined: Sep 20, 2006
    Posts: 313

    tstclr
    Member

    I have a Holley remanufactured 4010 600 cfm carb on my 350 Chevy. It has given me nothing but grief. One day it works fine, the next it won't idle at all. Suspecting I somehow got some shit inside the carb, I took the top cover off to have a look. I didn't find any dirt but I did notice a small pin hole in the bottom of the primary bowl just above the accelerator pump. If I crank the throttle, what little gas that was still in the carb shot up through this pin hole (and a little from the venturis). If I put my finger over the hole, I got a good stream out the venturis. My newbie question is: Should this pinhole be there? Here's a photo. The dental pic is pointing to it:
    [​IMG]


    It's such a small pinhole I can't see it being one that is supposed to be there. The smallest piece of crud would certainly plug it.

    Thanks
    Todd
     
  2. I would say no. I used to have one of those carbs.Don't recall any holes in the floor of the bowl.Doesn't look like it would be in a place that would be a metered hole.
     
  3. panic
    Joined: Jan 3, 2004
    Posts: 1,450

    panic

    Shouldn't be there. They revised the 4010 at least once (4010-1) for petty crap like this.
     

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