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Open for suggestion on carb...225

Discussion in 'Early CJ5 and CJ6 Tech' started by capechopper, Mar 1, 2006.

  1. Mar 1, 2006
    capechopper

    capechopper New Member

    plymouth MA
    Joined:
    Feb 6, 2006
    Messages:
    10
    stock cam ..headers either rebuild rochester or replace? Anyone have any input..getting sick of manual choke as well and was thinking holley 350 cfm
     
    capechopper, Mar 1, 2006
    #1
  2. Mar 1, 2006
    vanguard

    vanguard

    Motorcraft 2100 with 1.08 or 1.14 venturis.
     
    vanguard, Mar 1, 2006
    #2
  3. Mar 1, 2006
    Phalanxx

    Phalanxx Jeep Newbie

    iraq, texas,...
    Joined:
    Jan 13, 2004
    Messages:
    363
    thats a nice carb vanguard listed....but the holley 470 truck avenger with the offenhauser dual port 4bbl is supposed to rip some tail in both mileage and low end torque. it has great anglular displacement without stalling out too. it deppends on the ammount of $$ you have and what you are trying to achieve. the 2100 will prolly pull good mileage aswell, so its all what you want i guess. the offy/470 runs like a 235 cfm on 'roids untill you open the rear barrels.
    just giving you options.
     
    Phalanxx, Mar 1, 2006
    #3
  4. Mar 1, 2006
    Boyink

    Boyink Super Moderator Staff Member

    Tulsa, OK
    Joined:
    Sep 20, 2002
    Messages:
    6,197
    Dunno what Holley is currently on SSDutch, but it's crap offroad. Starves for fuel on hills.
     
    Boyink, Mar 1, 2006
    #4
  5. Mar 1, 2006
    capechopper

    capechopper New Member

    plymouth MA
    Joined:
    Feb 6, 2006
    Messages:
    10
    money is not an issue...anyone have an offy intake kickin around
     
    capechopper, Mar 1, 2006
    #5
  6. Mar 1, 2006
    schardein

    schardein Low Range Therapy

    Success, MO
    Joined:
    Aug 11, 2003
    Messages:
    553
    Mike, if it is the 390 cfm 4bbl, there is a plastic "whistle" thing you can install in the front float bowl. That along with a very slightly lowered float level and a homemade vent tube like the truck avenger made mine perform really well, it was crappy out of the box.
     
    schardein, Mar 1, 2006
    #6
  7. Mar 1, 2006
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,472
    Yup - Holley 390 = crap out of the box... a few mods and it works pretty darn good.

    If you want, I'll pull my list together and post it for you.
     
    Warloch, Mar 1, 2006
    #7
  8. Mar 1, 2006
    Boyink

    Boyink Super Moderator Staff Member

    Tulsa, OK
    Joined:
    Sep 20, 2002
    Messages:
    6,197
    No, it's some 2bbl thing that's soon gonna get replaced by all the original FI stuff that came on this 4.3...
     
    Boyink, Mar 1, 2006
    #8
  9. Mar 1, 2006
    schardein

    schardein Low Range Therapy

    Success, MO
    Joined:
    Aug 11, 2003
    Messages:
    553
    FI, oh yeah! On my 83(mostly....welll.....not anymore) CJ7, the top mods ever would be a battle between FI, T18, and lockers.
     
    schardein, Mar 1, 2006
    #9
  10. Mar 2, 2006
    Badcop

    Badcop I Just look New.....

    West Point, UT
    Joined:
    May 5, 2005
    Messages:
    95

    x2, just saw this on ebay:

    http://cgi.ebay.com/ebaymotors/OFFE...36474QQitemZ8043006160QQrdZ1QQsspagenameZWDVW
     
    Badcop, Mar 2, 2006
    #10
  11. Mar 2, 2006
    Toolmaker

    Toolmaker Member

    Westminster, SC
    Joined:
    Oct 3, 2005
    Messages:
    132


    I'd like to see your list of carb mods.

    Thanks!
     
    Toolmaker, Mar 2, 2006
    #11
  12. Mar 2, 2006
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,472
    Will pull them together tonight and post them.
     
    Warloch, Mar 2, 2006
    #12
  13. Mar 2, 2006
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,472
    Besides the main - air fuel mix stuff. I changed the following:
    Needle and Seat – Off Road #6-513
    Dropped Float level

    Black Secondary Spring
    Vent Baffle 26-40

    Jets are a 51's (a bit big)
    Forgot to write down power valve...

    To get much more you need center hung bowls... I am looking into the TA 470 (0-90470) but it costs an arm and a leg right now, and I have 4 390s.
     
    Warloch, Mar 2, 2006
    #13
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