What type carb

Discussion in 'Technical' started by Wilsond3010, Apr 20, 2012.

  1. Wilsond3010

    Wilsond3010 Member

    Joined:
    Apr 7, 2012
    Messages:
    74
    Likes Received:
    0
    Trophy Points:
    18
    Location:
    Regina, SK
    Vehicle:
    1970 Maverivck
    Last edited: Apr 20, 2012
  2. blugene

    blugene Senior member Supporting Member

    Joined:
    Jul 25, 2004
    Messages:
    10,768
    Likes Received:
    80
    Trophy Points:
    283
    Garage:
    1
    Location:
    Marietta, OK
    Vehicle:
    73 Comet GT, 72 Comet GT, 2008 "Comet" (our boxer, who is now in the galaxies)
    Ummm.. yes, it's a GM. Anything is possible lol.
    What's the help you need?
     
  3. Wilsond3010

    Wilsond3010 Member

    Joined:
    Apr 7, 2012
    Messages:
    74
    Likes Received:
    0
    Trophy Points:
    18
    Location:
    Regina, SK
    Vehicle:
    1970 Maverivck
    Trying to figure out what type and such so I can get either a carb kit for it.

    Also to figure out where the auto choke and vacumm lines go.

    And is it worth keeping it on there or replacing it with something else
     
  4. blugene

    blugene Senior member Supporting Member

    Joined:
    Jul 25, 2004
    Messages:
    10,768
    Likes Received:
    80
    Trophy Points:
    283
    Garage:
    1
    Location:
    Marietta, OK
    Vehicle:
    73 Comet GT, 72 Comet GT, 2008 "Comet" (our boxer, who is now in the galaxies)
    How does it run? Does it need a 4 barrel? There should be some #s on it somewhere..
     
  5. Wilsond3010

    Wilsond3010 Member

    Joined:
    Apr 7, 2012
    Messages:
    74
    Likes Received:
    0
    Trophy Points:
    18
    Location:
    Regina, SK
    Vehicle:
    1970 Maverivck
    It runs with some backfire if rev too high.

    I managed to decode it looks to be a 1976 4 barrell for a chevy/gm
     
  6. blugene

    blugene Senior member Supporting Member

    Joined:
    Jul 25, 2004
    Messages:
    10,768
    Likes Received:
    80
    Trophy Points:
    283
    Garage:
    1
    Location:
    Marietta, OK
    Vehicle:
    73 Comet GT, 72 Comet GT, 2008 "Comet" (our boxer, who is now in the galaxies)
    We may want to see if some carb gurus chime in. My thoughts are it ain't a Ford carb but then again if it works.. lol
     
  7. Bob Wiken

    Bob Wiken Chronologically Gifted

    Joined:
    May 10, 2007
    Messages:
    1,592
    Likes Received:
    4
    Trophy Points:
    102
    Location:
    Fayetteville, Arkansas
    Vehicle:
    1973 maverick, '87 306 H.O., roller rockers C4
    Backfireing usually means your timing is off A carb if adjusted properly doesn't care if it is sitting on top of a 302 or a 350 and conversly, a 302 and 350 don't know the difference either. As long as everything lines up with no leaks, it's all doable
     
  8. Wilsond3010

    Wilsond3010 Member

    Joined:
    Apr 7, 2012
    Messages:
    74
    Likes Received:
    0
    Trophy Points:
    18
    Location:
    Regina, SK
    Vehicle:
    1970 Maverivck
    Bob you could be right. Cause I wanted to adjust the timing but there isn't any markings to use a timing light so I'm going to have to do manually
     
  9. Joe Dirt

    Joe Dirt BBF life

    Joined:
    Dec 16, 2008
    Messages:
    4,375
    Likes Received:
    7
    Trophy Points:
    172
    Location:
    Cleveland, TN
    Vehicle:
    1970 ford torino #1
    Thats a rochester quadrajet

    Good for fuel milage
     
  10. Blue Brick

    Blue Brick Member

    Joined:
    Jan 16, 2010
    Messages:
    173
    Likes Received:
    0
    Trophy Points:
    33
    Yup, and the best 4V ever.
     
  11. baddad457

    baddad457 Member

    Joined:
    Feb 24, 2007
    Messages:
    5,861
    Likes Received:
    141
    Trophy Points:
    171
    Location:
    Opelousas La.
    Rochester Quadra****. They work fine til they need a rebuild, then they're scrap yard fodder. There's a reason Holley still makes their carbs in a spreadbore version to replace the Quadra****.:biglaugh:
     
  12. bmcdaniel

    bmcdaniel Senile Member

    Joined:
    Jul 2, 2002
    Messages:
    6,825
    Likes Received:
    682
    Trophy Points:
    318
    Location:
    York. PA
    Vehicle:
    '70 Maverick Grabber
    In the mid-70s I ran a Q-jet from a big block Buick on my 289. Once I learned how to tune it, it was a decent carb. Great mileage and made a nice roar when those huge secondaries opened up. Only problem I had with it was when the weather got really hot the fuel inside would percolate since the fuel bowl is in the center of the carb and very small.
     
  13. Resto

    Resto Benders Evil Twin

    Joined:
    Sep 2, 2010
    Messages:
    1,293
    Likes Received:
    5
    Trophy Points:
    147
    Location:
    Yuma AZ
    Vehicle:
    73 Mav Buckets(69 351W, soon to be 408) Floorshift FXBDY AOD ,07 Glide,06 E250HA,01 Silverado
    Ive had good luck with Edelbrachs out of the box. I hate Quadrajets, my wifes 350 had one. I bought a rebuilt one to replace it and it sucked air from underneath. Had to take it to a shop that seals the plugs in the bottom of the fuel bowl. They dont do that when they rebuild them, cost me more to have a shop go through it. Dont get me wrong a Quadrajet is a nice carb, But you need a Quadrajet expert to make an old one work like a new one. $$$
     
  14. Streamliner

    Streamliner Member

    Joined:
    Mar 4, 2010
    Messages:
    578
    Likes Received:
    3
    Trophy Points:
    100
    I remember back in the "day" these could be made to run like gangbusters....I believe the had metering rods instead of jets and they were easier to change
     
  15. bmcdaniel

    bmcdaniel Senile Member

    Joined:
    Jul 2, 2002
    Messages:
    6,825
    Likes Received:
    682
    Trophy Points:
    318
    Location:
    York. PA
    Vehicle:
    '70 Maverick Grabber
    That used to be standard procedure when rebuilding a Q-jet, stake and epoxy those two plugs.
     

Share This Page