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An improved jet extension design that actually screws into the metering block. The main metering jet then threads into the end of the extension. The installation effectively moves the fuel entry point for the main jet out into the fuel bowl. In this location it cannot be uncovered by fuel, causing a lean condition, during periods of hard acceleration or braking. 2/Pkg.
Holley Main Jet Extension - 122-5000
$18.06
Features:
- Improved Design
- 2 Per Package
Product Specifications:
- Product Details: Main Jet Extension
- Extension Inside Diameter: 0.136 IN
- Extension Length: 0.710 IN
- Extension Material: Brass
- Grade Type: Performance
- Part Type: Carburetor Metering Jet Extension Kit
- Product Type: Main Jet Extension
Installation Notes:
Requires the use of special "notched" float to achieve proper clearance and to operate properly. Notched float number 116-11 Or Kit with float and extensions 116-10.