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new q-jet by edelbrock

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by lgk5, Aug 28, 2001.

  1. lgk5

    lgk5 1/2 ton status

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    i just bought the edelbrock q-jet, bolted it on and it idles sooo
    smooth at 600 rpm, but i can't get the secondarys too kick in any ideas, did i miss some thing? vac? is it adjustable
     
  2. FWP

    FWP CRS

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    How do you know you're not getting the secondaries? what are you going by? It may be ok. Need a little more info.

    <a target="_blank" href=http://coloradok5.com/gallery/75K5>http://coloradok5.com/gallery/75K5</a>
     
  3. lgk5

    lgk5 1/2 ton status

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    good point,if it is working thats sad i'll put the old rochester
    back on or fit the holley off my ford on it
    i know it needs a load put on it to work i drove it about 20 miles home slc but not on the freeway
     
  4. lgk5

    lgk5 1/2 ton status

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    it's on a new 350 4 bolt main stock cam about 1100 miles on it,4.56 gears,33" tires if that helps ,the carb runs great at idle
    and around the street just at full throtle leaves you wanting more

    <P ID="edit"><FONT class="small">Edited by lgk5 on 08/28/01 09:39 PM.</FONT></P>
     
  5. FWP

    FWP CRS

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    Your profile says you're in SLC, are you jetted for your altitude? I think the stock off the shelf stuff is set for sea level.

    <a target="_blank" href=http://coloradok5.com/gallery/75K5>http://coloradok5.com/gallery/75K5</a>
     
  6. lgk5

    lgk5 1/2 ton status

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    hmm, i don't know ? how would i find out?
     
  7. FWP

    FWP CRS

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    There should be a manual that came with it explaining the cal curves. If not, you may want to contact Edelbrock.

    <a target="_blank" href=http://coloradok5.com/gallery/75K5>http://coloradok5.com/gallery/75K5</a>
     
  8. lgk5

    lgk5 1/2 ton status

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    it came with a general instructions book about 4pgs and a acc
    book thats got all the rods and jets in it ,but no specs just part #s .i did how ever order a comp cam and lifters that mite help
    top end. i'll e-mail edelbrock and see what they recomend for
    my area
     
  9. MudbogAD

    MudbogAD 1/2 ton status

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    YOur old rochester probably was a 750 cfm. You just got a 600 cfm. Maybe that's why.

    Adam
     
  10. lgk5

    lgk5 1/2 ton status

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    the new one's a#1904-795cfm
     
  11. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I'm pretty sure they only came in two sizes, 750 CFM and 795 CFM...
    The 600 CFM Edelbrosck you might be thinking of is a clone of the old Carter AFB...

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
     
  12. Triaged

    Triaged 1/2 ton status

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    Check out these links.
    http://www.dorianyeager.com/indexquad.html

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
    <a target="_blank" href=http://community.webshots.com/user/triaged>See it Here </a>
     
  13. Burt4x4

    Burt4x4 3/4 ton status

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    There is a little lever on the bottom pass side that stops the secondaries from opening. It is part of the choke linkage. I removed mine cuz from time to time that sucker would fling into the loked position and keep my secondaries from opening.
    I have the Edel. 1901 Q-jet. Also there is a set screw at the top that alows you to adjust the secondary butterfly tension(how much vac is needed to open the flap) be careful when you losen the set screw you must have a screwdriver on hte adjusting srew or the spring will lose all it's tension and now you have to start from scratch...not fun.
    Hope this helps

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <a target="_blank" href=http://www.geocities.com/baja/5099>www.geocities.com/baja/5099</a>
     
  14. lgk5

    lgk5 1/2 ton status

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    good call!!!!! that was it.. choke wasn't opening all the way
    i put some spacers on it to get the air cleaner to clear the
    dist, and the spacer was holding it .works great now!
    thanks
     
  15. Burt4x4

    Burt4x4 3/4 ton status

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    Cool!! Glad too help!
    Later

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <a target="_blank" href=http://www.geocities.com/baja/5099>www.geocities.com/baja/5099</a>
     

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