Quadrajet carb replacement

Discussion in 'General Automotive Tech' started by Bob Scott, Oct 27, 2009.

  1. Bob Scott

    Bob Scott New Member

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    Just an FYI.
    I found a Holley spreadbore carb that is a "fit like the original Quadrajet". "All necessary vacuum ports so they install and fit just like a Q-jet with no adapters required."
    Summit catalog # 4175 non emmissions - Holley # HLY-0-80555C
    # 4165 emmissions provisions - Holley # HLY-0-6210
     
  2. Blackfoot

    Blackfoot Wagonless Soul

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    Yeah, but its a :vomito:Holley
     
  3. Bob Scott

    Bob Scott New Member

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    Yes! Holley builds it for direct replacement. Same front and rear float bowls as in other Holley carbs but the same spread bore base as the Q-Jet.
    Holley isn't everyones cup of tea but I think they are less trouble and better performing then the Q-Jet. JMHO of course! ;)
     
  4. Roadking41A

    Roadking41A Well-Known Member

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    Bob I wasn't taking credit for it I just couldn't remember where I seen it.
     
  5. CapriceEstate

    CapriceEstate Yacht Captain

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    Boy oh boy Blackfoot, you must be trying for my best friend slot. We seem to be agreeing on everything lately haha.
     
  6. Junk

    Junk Well-Known Member

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    If you know someone that can properly rebuild a Quadrajet carburetor, it will perform like new. Most of the problems with the Quadrajet carbs are the floats. I was told that new floats are still available, and when you replace the defective float, they work fine. As with most anything, if you don't understand how it works, and don't have the ability to repair it, you think of it as a worthless piece of garbage. Both my 1969 and my 1978 have the Quadrajet carbs, and they both work well.
     
  7. CapriceEstate

    CapriceEstate Yacht Captain

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    My 79 and 87 both have Q-Jets, the 79's alright and the 87's the best Carb i've ever had, hands down.
     
  8. Roadking41A

    Roadking41A Well-Known Member

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    You won't think that if you have to rebuild the one in the 87
     
  9. Blackfoot

    Blackfoot Wagonless Soul

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    On a carbed motor, I will only ever run a Q-Jet. They are the most economical for putting around and when you open them up, its like the roar of the gods. I have never had a single problem running any QJet carb and I am and always will be a GM man. I have the 3 best mechanics in the world if I can not get it tuned, my pops or my 2 older brothers.

    I read an article several years back where they compared the most popular carbs.
    Holley, Edelbrock, QJet and Street Demon. The QJet put out the most power and torque of them all, the only bad thing they had to say about it was the eratic fuel and CFM flow when the secondaries opened up. Once the motor caught up to the drastic change in fuel and air flow, there was a significant gain in both HP and TQ across the board. The 2nd place was Edelbrock, 3rd was Street Demon and as always Holley fell way short of the rest.

    I wouldn't hit my ex-wife in the ass with a holley.
     
    Last edited: Oct 28, 2009
  10. CapriceEstate

    CapriceEstate Yacht Captain

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    True, but it starts so well in the cold. I love that carb right now.
     
  11. Roadking41A

    Roadking41A Well-Known Member

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    That is a lie I would. :rofl2::rofl2:
     
  12. Blackfoot

    Blackfoot Wagonless Soul

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    OK you are right, but I would aim for her head first.
     
  13. Roadking41A

    Roadking41A Well-Known Member

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    And like all things funny you would miss and hit her in the azz :rofl2::rofl2:
     
  14. Steve-E-D

    Steve-E-D Well-Known Member

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    Most of the quadrajunk, quadrapuke etc. comments are just a lack of understanding how to set it up properly.
     
  15. tbirdsps

    tbirdsps New Member Charter Member

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    I agree. The quadrajet is the best carb for the application. Just remember to fix the plug leaks as someone else already said. The quadrajet is a very high quality carb and when it's "tuned" right will serve for many years trouble free.

    I hate Holley. It's no wonder they are in bankruptcy....AGAIN! Anything Edlebrock is better than anything Holley IMO.
     

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