GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 4 of 4
  1. #1

    Default Q-Jet to Holley conversion

    I just completed a switch from a stock QuadraJet Carb to a Holley 600 Carburetor on my 1985 C10. Wow, what difference!! Gas mileage went from 12 MPG to 16 MPG and the performance is WAY better. I have a list of replacement parts used if anyone is looking to replace their QuadraJUNK for a Holley.
    PEACE OUT <
    John in New Smyrna Beach,FLA

    :sign0017:

  2. #2
    Legend tlperry68's Avatar
    Join Date
    Oct 2008
    Location
    Huntington Beach, CA
    Posts
    1,504

    Default

    I lovr Holley's ad Crters. I didn't get better milager after I put on the holley though. It sure sounds good wen the hod is off!
    Trevor - Huntington Beach, CA
    2007 GMC 2500 4X4

  3. #3
    Moderator

    dwill3015's Avatar
    Join Date
    Jan 2007
    Location
    Yacolt, Washington
    Posts
    4,338
    Blog Entries
    2

    Default

    Thanks for letting us know what an improvement it made!
    Darcy
    Washington State
    2006 Silverado 2500HD LT3 4X4 CC SB Duramax LBZ
    Tuff Country 6" lift, 35" Toyo M/T's on 20" Ultra Peacemaker wheels, Quadzilla Stealth2 programmer, Diamond Eye 5" cat-back exhaust, factory Special order color Yellow.

  4. #4
    Newbie
    Join Date
    Feb 2009
    Location
    Clemson, South Carolina
    Posts
    3

    Default

    I have been thinking about switching my 4brl Qjet with a holley carb but was told by a guy it wasn't worth it.. This isn't true im guessing? Its my daily driver and id like to see a little gain in power and maybe mileage. I was thinking about getting a 650 myself. Any thoughts?

Similar Threads

  1. 87 C10 Holley Throttle Body to Edelbrock gasket leaks
    By cyberpine in forum Chevy C/K Truck Forum
    Replies: 5
    Last: 02-04-2010, 04:32 PM
  2. holley throttlebody
    By leprachaun in forum Performance & Fuel
    Replies: 7
    Last: 07-23-2009, 11:20 AM
  3. Holley Throttle body problems
    By okysmokey911 in forum Chevy C/K Truck Forum
    Replies: 2
    Last: 06-21-2009, 11:28 PM
  4. A/C conversion
    By warwagon in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 6
    Last: 06-10-2009, 10:22 PM
  5. Holley 390 on a 4.3???
    By MotorcityMuscle in forum Performance & Fuel
    Replies: 3
    Last: 03-25-2009, 05:18 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •