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Harley Carb Premium Tuners Kit

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The Premium Tuners Kit includes everything in our Deluxe kit + our Stainless Steel Extended Idle Screw and Mixture Packing Kit. Complete carburetor performance in an all-inclusive kit. The Premium Kit for Harley-Davidson motorcycles is far more than a recalibration jetting kit. By way of CVP's custom designed needle, spring, and vortex emulsion tube, the complete kit will unleash the full potential of your Harley's stock carburetor. Also includes an assortment of jets, s/s hardware, gaskets, and full tuning instructions. The Premium kit includes the EZ-Just mixture screw found in our Deluxe kit plus our exclusive stainless steel idle screw and mixture packing kit. 

Save up to 30% when purchasing a Premium Kit.    Special through - only $76.95
and free shipping (regular mail)

Available for all constant velocity (CV) carburetors on 1989-2006 Harley Big Twin, Twin Cam, and Sportster models.


  • CVP Performance Slide Needle for Improved Midrange
    • Exclusively designed by CV Performance.
    • CNC Machined from Aerospace Quality 7075-T651 Billet Aluminum
  • New Custom Light Weight Slide Spring
    • Custom designed specifically for CV Performance
  • CVP Vortex Emulsion Tube
    • Designed for optimal vortex fuel atomization.
    • Precision CNC Machined
    • Exclusively design, only available from CV Performance.
  • EZ-Just Mixture Screw (Deluxe and Premium kits only)
  • Assortment of 2 New Main Jets
  • Assortment of 2 New Idle Jets
  • 2 Replacement Fuel Line Clamps
  • Drill Bit for mixture plug removal and modifications
  • Front airbox gasket
  • Easy to follow installation and tuning instructions
  • Online customer support provided via sponsored forum
  • Stainless Steel Bowl Screw Kit


  • CVP Stainless Steel Extended Idle Screw
  • Mixture Packing Kit (replacement o-ring, spring, washer)
    Idle Speed Screw          Mixture Packing Kit

Don't forget to add Spark Plugs to your tuning. 

Included jets are predetermined for each model and may not be substituted. Each kit includes jets based on extensive R&D and real world road testing. If you require specific jet sizes and do not wish to use the recommended sizes supplied in each kit, please select the "Custom" model selection. Please indicate sizes for the 2 main jets and 2 pilot jet sizes in the comments section at checkout. Note that CVP is unable to provide individual support for kits using custom selected jets. Kits are for Harley CV carburetors only and will not fit non Harley (CVK) style carburetors used on other motorcycle makes.

Not compatible with DynoJet® parts or DynoJet® Thunderslides.

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Product Reviews

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  1. If your harley is carburated by this!

    Posted by on

    I have a 2000 Road King with about 100,000 miles on it. I have had two shops tune my carb and also had it dynoed. I was still unhappy with my carb. For some reason between 60 and 70 anytime I would give it some throttle it would cough before it started to speed up. It drove me crazy! This kit solved my issue! The throttle response is better as well as smoother. After having it dynoed my stock 88 was producing 64 hp before the kit. Save yourself the money on having a shop dyno your bike and get this kit...

  2. Premium kit

    Posted by on

    Great value and comprehensive kit with jet selection. Easy install and instructions clear.

  3. Completely satisfied customer

    Posted by on

    I had already changed my pilot jet to adjust for the stage 1 parts, and the bike was running good before I installed the premium kit.

    The difference between that and after installing the premium kit was still very noticeable. It is a well thought out kit that covers all the bases.

    The only place I had a problem was the mixture screw, I didn't read the section regarding oiling the threads and by the time I realized what had happened the carb was installed. I'm going to order the choke relocation stuff, a chrome top and the improved acc. pump spray nozzle and work the ezjust in when I have the carb off for that.

    After using the kit I wouldn't tune a CV any other way. Money well spent.

  4. Awesome

    Posted by on

    Just replaced the old butterfly carb on my 1988 FLSTC with a CV. The premium kit installed and WOW! Just dialed in the idle mixture with 45 and 180 jets,everything works as it should. Very smooth idle engine just wants to keep pulling and it seems to have less vibration.Far cry from the old butterfly. CV Performance put it in the awesome catagory.

Showing reviews 1-4 of 92 | Next

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