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Percy's 15003

Adjust-A-Jet Fits 4150/4160 Alcohol Drag Carburetor

Percy's 15003


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Percy's 15003 Adjust-A-Jet Fits 4150/4160 Alcohol Drag Carburetor $118.99
  • Fits 4150/4160 Alcohol Drag Carburetor

  • Percy's 15003 Details


  • Adjust Main Fuel Jetting While Engine Is Running
  • Does Not Effect Emulsion/Idle Characteristics
  • Will Bolt On w/Little Or No Modification
  • Ranges From Jet Sizes 0 To 100
  • Larger Orifices To Accommodate The Extra Alcohol

  • Specifications:

    Manufacturer's Part Number:

    The Adjust-A-Jet bolts in between the metering block and fuel bowl. The Adjust-A-Jet does not affect the original emulsion characteristics or idle characteristics and will bolt on with little or no modification. The Adjust-A-Jet may be used on any Holley or modified Holley carburetor.
    The Adjust-A-Jet is supplied with a chart that compares jet sizes to particular number of turns open, this is only to get the engine running, after that you no longer need the chart because you are making a rich/lean adjustment, instead of a jet change.

  • Save Time
  • Avoid Fuel Spills
  • Metering Needle Provides Infinite Fuel Adjustment
  • Includes Jet Size Equivalency Chart

  • 15003 - Percy's Adjust-A-Jet is rated 3.0 out of 5 by 1.
    Rated 3 out of 5 by from Check and Check Again The idea behind them is wonderful, easy to adjust, and see changes immediately. Easy to install regardless of pages of instructions. But mass production has its flaws. Every Main Circuit was closed due to extra plastic remaining in ports. I didn't notice this at first and had my car at the track and couldn't for the life of me figure out while it was stumbling (by stumbling I mean completely falling on its face and die on launch) Took both of them off and noticed this defect. Fixed by cutting out the plastic left from production and problem fixed. Just check yours before installation. Will save you a world of hurt!
    Date published: 2017-03-21
    • y_2018, m_5, d_23, h_6
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    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations