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Holley 94 - Power Valve Issue + Source for Valves?

Discussion in 'The Hokey Ass Message Board' started by Psychobilly Boi, Jan 17, 2007.

  1. JDL
    Joined: Oct 15, 2007
    Posts: 23

    JDL
    Member

    I bought a power valve plug at our local carquest I think it was holley #22-26 I don't know if they can order non holey power valves
    jdl
     
  2. scootermcrad
    Joined: Sep 20, 2005
    Posts: 12,304

    scootermcrad
    ALLIANCE MEMBER

    And it had the smaller spring and nut/keeper/plunger/thingy??
     
  3. turbostude
    Joined: Nov 8, 2006
    Posts: 342

    turbostude
    Member
    from minnesota

  4. scootermcrad
    Joined: Sep 20, 2005
    Posts: 12,304

    scootermcrad
    ALLIANCE MEMBER

    Great info! I plopped your write-up into a word document and printed it out for referance. Thanks for sharing!
     
  5. turbostude
    Joined: Nov 8, 2006
    Posts: 342

    turbostude
    Member
    from minnesota

    I can send pics of the little tool I made to flatten the radius on the pv.
    e-mail me.
    advo@comcast.net
     
  6. Scooter,

    Have a look carefully at this pic, the red highlighted area shows the little step or lip that stops the moden power valve from going in. All you need to do is carefully grind this away with a dremmel or a bit in a air grinder etc. I cut the top off an old power valve and inserted it into the hole to protect the threads against a slip of the grinder. There is more then enough mean in there to not worry toooo much about going through with the grinder into a passage. Just take it easy and keep putting the new PV in to check progress.

    [​IMG]
     
  7. Mate, if you modify the channel the nut sits in against the bowl (see my prev post) you can use modern PV's when ever you want.

    Danny
     
  8. Any chance you could post them here for future posterity?

    Danny:D
     
  9. I followed Dan's lead and it worked a treat!
     
  10. Dreddybear
    Joined: Mar 31, 2007
    Posts: 5,926

    Dreddybear
    Member

    Good page. I'm gonna link this thread and your page to the Holly tech links..
     
  11. turbostude
    Joined: Nov 8, 2006
    Posts: 342

    turbostude
    Member
    from minnesota

    thanks! I'll see if I can upload the pics of the tool onto my page or leave a url to the pics in this thread....
     
  12. Candy-Man
    Joined: Mar 21, 2006
    Posts: 1,704

    Candy-Man
    Member

    Great post with information I was looking for......
     
  13. greasemunkey
    Joined: Jul 24, 2007
    Posts: 201

    greasemunkey
    Member
    from katy, TX

    Trying to learn more about this PV situation.
    First, does Napa sell the old school PV's with the smaller radius? Would anyone have part numbers?

    Second, my set-up involves a sling-shot dual carb intake. Had the same issue with the PV's. Would replacing one of the PV's with a plug, eliminate the vacuum issue? Also, would it resolve any imbalance, during acceleration?

    Any help would be greatly appreciated.
     

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