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MSZ Holley 122 5000 Main Jet Extension P15200333MSZ-HOL-122-5000 https://cdnimages.opentip.com/full/MSZ/MSZ-HOL-122-5000.jpg Holley 122 5000 Main Jet Extension Manufacturer Part Number: 122-5000Main Jet ExtensionAn 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 per package.CrbJetExtensionMain Jet Extension; Pair; 15200333 090127336779 0.0900lbs 1.00 3.00 5.00
Holley Performance
12.0980 2025-07-12 Only 3 left In Stock

Holley 122-5000 Main Jet Extension

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UPC: 090127336779
SKU: MSZ-HOL-122-5000
Price: $12.10
Quantity:
Only 3 left In Stock
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Product Description

Manufacturer Part Number: 122-5000

Main Jet Extension

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 per package.

CrbJetExtension

Main Jet Extension; Pair;

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

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