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1974 CJ5 4.2 L Carter Carb options?

Discussion in 'CJ' started by stanbo, Aug 11, 2016.

  1. Aug 11, 2016 at 8:44 PM
    #1
    stanbo

    #1
    stanbo [OP] Member

    Joined:
    Aug 7, 2016
    Member:
    #62
    Messages:
    13
    Gender:
    Male
    First Name:
    John
    Vehicle:
    1974 CJ5. 4.2 258 inline 6. 3 spd manual.
    rear locker
    I have a 1974 CJ-5 with the Carter 2313 Carb. It isnt smooth even after a rebuild and gets poor fuel economy. Without changing the intake manifold, what options do I have. I would like more power.
     
    stanbo, Aug 11, 2016
    #1
  2. Oct 5, 2016 at 12:19 PM
    #2
    OFFGRID

    #2
    OFFGRID Well-Known Member

    Joined:
    Oct 3, 2016
    Member:
    #317
    Messages:
    2,018
    Gender:
    Male
    First Name:
    Peter
    Houston
    Vehicle:
    1979 Jeep CJ7, 258, TH350, NP208
    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    I installed a Howell TBI (uses OEM 2 barrel intake) system and an HEI distributor on my 258. OH MY GOSH what a difference. Smooth at idle 600rpm all the way to 3500rpm. Don't like to go any higher than that. On my next build I would strongly consider a Mild Fi-Tech TBI. The computer is integrated into the Throttle body, and it is about 400 cheaper. You may need to get an Offi 4 barrel intake (used $100+/-) for the Fi-Tech. If you want to stay carbed I understand that there is a FoMoCo that works well with the old CJs. The Carb I think many are switching to is the Motorcraft 2100 also known as MC2100.
     
    Last edited: Oct 5, 2016
    OFFGRID, Oct 5, 2016
    #2
    Bob likes this.
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