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Carbs, Need a new one Any suggestions?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 84silverK5, Dec 5, 2001.

  1. 84silverK5

    84silverK5 Registered Member

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    My friend with an Edlebrock says he hates his carb, but i heard good things about the edelbrock Q-jet (his isnt Q-jet)
    would it be better to just rebuild the Old rochester Q-jet, or what i appriciate all info, Thx in advance
     
  2. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    If you have the $$$, you might consider a Jet Performance Q-jet. Supposed to be really nice...I didnt have the $ so I just rebuilt mine with one of the el-cheapo rebuild kits from a parts store, cost around $20.

    Jason


    See the on-going build up of my '85 Jimmy! http://community.webshots.com/user/jekbrown
     
  3. 84silverK5

    84silverK5 Registered Member

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    how does it work now? is it easy to rebuild it your self?
     
  4. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    The rebuild kit is basically a glorified gasket kit...if your factory Q-jet has MAJOR issues, it probebly wont solve them. Still, considering a new edel or Jet qjet is $pendy....you might want to try the rebuild just as a cost saving venture.

    As far as how easy it is....let put it this way. Before I rebuilt mine, I had NEVER taken a single part off of it before and everything worked out. That said, I had a book on rochester carbs that was VERY useful in disassembly/reassembly. Rebuild kits come with a exploded diagram that helps...but a carb book will have detailed instructions with pictures etc. That helped me a lot.

    Jason


    See the on-going build up of my '85 Jimmy! http://community.webshots.com/user/jekbrown
     
  5. slider

    slider 1/2 ton status

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    Just put a Jet Q jet in place of my Carter AFB. Man what a difference. The Carter ran good but the Jet Q jet is fine. I recommend this carb. If you want to save 20 bucks order it from Summit.
     
  6. Slayer

    Slayer 1/2 ton status

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    Very simple, there is only <font color=red>ONE</font color=red> worthwhile carb to buy, and that is a <font color=red>Holley</font color=red>. You can buy all the Edelbreaks you want, but in the end you'll go Holley.
    Of course <font color=orange>EVERYONE</font color=orange> just <font color=red>HAS</font color=red> to make the same usual mistakes along the way, otherwise they wouldn't call it <font color=green>the School of Hard Knocks</font color=green>.
    You youngsters can sometimes trust us aging wheelers, from time to time, <font color=red>without</font color=red> damaging your hard knock learning curve.....................



    <font color=blue>I don't know everything, I just think that I do.............</font color=blue>[​IMG]
     
  7. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    Step 1: Buy a Holley.
    Step 2: Install Holley offroad/ trick kit
    Step 3: Adjust float level 1/4" below sight plug before wheelin'
    Happy rompin' &amp; wheelin'
     
  8. Blazer79

    Blazer79 1/2 ton status

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    After going through 3 Rochesters, I finally bought a new Edelbrock Q-jet. Just install it, start it up (it will start very quickly and easily), and adjust idle. 2 years later, no problems at all.

    Unless Carters, Edelbrock Performers or Holleys, Q-jets wont die at weird angles, so I suggest to stick with them.



    <font color=purple>//////
    <a target="_blank" href=http://blazer79.freeyellow.com>blazer79.freeyellow.com</a></font color=purple><font color=black>
    Soon a 454 K5!!</font color=black>
    [​IMG]
     
  9. sinchphoto

    sinchphoto 1/2 ton status

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    yeah i have an edelbrock 650 too and i dont like it. primarly because the linkage is not gm so it the tv cable doesnt fit the way its suppose to. checkout bowtieoverdrives.com they got a cool setup with an adjustable tv cable.
     
  10. Twiz

    Twiz 1/2 ton status

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    Q-jet vs Holley:
    Holley:
    The holley is the carb that all others will be compared to. The Holley is the most well known, most used (by gear heads in the U.S.) and modified carb. It has a solid following, and for good reasson. The A.M. has addopted the Holley, It is well known, and well used. Easy to understand, easy to addapt, easy to modifie, easy to ....... you name it. Kind-of-sounds like the same reassoning for useing a Small Block Chevy. Does it fit every need? Hell- no, But it fitts the "racing" performance market.
    Q-jet:
    It is the most used carb ever made. Why? - because it's simple and works with dependabiity. Primary venturis are small and therefore, It has excelent low speed drivability, that is ideal for the common consumer (and off-road user). 90% of the throttle used is below W.O.T. so, with the tripple venturies and smallish sized primaries, the engine damand signal (vac) to the metering sys is "on the money". The Holley has a dual venturie, and a far-from ideal booster, so low speed siganl is vague(S/P?) at best.

    Want to talk float bowls? Come and git some...

    I'm not knocking Holleys.
    They are excelent carbetors, from the ground up, they have several advantages over the tried-and-true Quadra-jet. But they are a comprimize, just like the Q-jet is. But, as-far-as a off-road/daily driver, the Q-jet rules.

    <font color=blue>Twiz</font color=blue>
    Can't get it up?
    So, drop it in
    gear.
     
  11. Blazer79

    Blazer79 1/2 ton status

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    Well said Twiztid.

    <font color=purple>//////
    <a target="_blank" href=http://blazer79.freeyellow.com>blazer79.freeyellow.com</a></font color=purple><font color=black>
    Soon a 454 K5!!</font color=black>
    [​IMG]
     
  12. Burt4x4

    Burt4x4 3/4 ton status

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    Twiztid!!! YES!!! Nicly done!!
    My Edlebrock 1901 Q-Jet has been AWSOME for me Off-Road! It doesn't have the deep throught,wheel burning, push you into your seat, revin at 8grand like the Hollys but who the hell needs all that when your off camber and trying to make it over the top of some crazy hill that the heep before you couldn't make it up!! My Q-jet will keep on pumpin fuel too alow me to get up and over the hill so all thoes Heep owners can stand there and say....Damn i didn't think that fullsize was gonna make it!!
    Hell ya I made!! I BUILT it!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <a target="_blank" href=http://coloradok5.com/gallery/Burt4x4>http://coloradok5.com/gallery/Burt4x4</a>
     
  13. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    One little plus for the Q-jet is everything fits. I did a motor swap for my uncle and getting a '99 vortec to run in a '79 K10 w/ a Holley was real interesting. Lost the cruise, had to fab a bracket, and play with the vac lines. I'd rather have a direct fit.

    <a target="_blank" href=http://new.wavlist.com/movies/031/ag-blow.wav>"I ain't nobody, dork."</a>
    <a target="_blank" href=http://www.geocities.com/bigkern76>http://www.geocities.com/bigkern76</a>
     
  14. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    Ah, dammit you guys.
    This stuff is funny.
    I always add in my "Get a Holley" just to get a rise outta you diehard Q-jet guys.
    Good explinations there Twizted.
     
  15. SCOOBYDANNN

    SCOOBYDANNN 1/2 ton status

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    Step 4: Bog going slightly uphill anyway
    Step 5: Buy Q-Jet[​IMG]

    Sun Desert Offroad <a target="_blank" href=http://4x4.alloffroad.com>4x4.alloffroad.com</a>

    It's all fun and games till someone loses an eye!
     
  16. DesertDueler

    DesertDueler 1/2 ton status

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    I will run a holley on anything that doesnt see hills. I have had great luck with the holley carbs on the Firebird, but I have the stock q-jet on the Jimmy. When I rolled 6 times it keep running till it flooded when we stoped on my door.

    86Jimmy 4"&35"MTRs,87 burb 4"&33"MT,69Firebird w/525 hp,and 70GTO live in PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My vehicles</a>
     
  17. Z3PR

    Z3PR Banned

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    Holley now makes a Truck Avenger carb designed for 4x4's. /forums/images/icons/grin.gif
     

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