Holley Performance Carburetor Metering Jet (MPN: 122-89)

Precision-engineered jets for optimal fuel flow control in Holley carburetors.

The Holley Performance Carburetor Metering Jet is designed to regulate fuel flow into the metering system of various Holley carburetors. With a jet number of 89 and a hole size of 0.1045 inches, these brass jets are essential for tuning fuel delivery to achieve desired performance levels. Each jet is flow tested to ensure accuracy and is stamped with the correct number for easy identification.

These metering jets are compatible with Holley carburetor models including 2010, 2300, 4010, 4011, 4150, 4160, and 4500, making them a versatile choice for automotive enthusiasts. The standard main jet design allows for easy replacement and adjustment, enabling users to fine-tune their carburetor setup. The changeable flow capacity of these jets provides flexibility for performance tuning, ensuring optimal engine operation.

Constructed from durable brass, this set of two metering jets is built to withstand the demands of gasoline fuel systems. The 1/4 Inch-32 UNF thread size ensures a secure fit within the carburetor, contributing to reliable performance. Whether for racing or everyday driving, these metering jets are a critical component for achieving precise fuel management.

Features

• Control Fuel Flow Into The Metering System
• All Holley Main Jets Are Flow Tested And Then Stamped With The Correct Number
• Standard Main Jet
• Flow Capacity Are Changeable For Tuning Purposes

Specifications

• Manufacturer: Holley Performance
• Manufacturer Part Number: 122-89
• Compatibility: Holley Model 2010, 2300, 4010, 4011, 4150, 4160 And 4500 Carburetor
• Type: Main Jet
• Fuel Type: Gasoline
• Jet Drill Size: 0.104 Inch
• Quantity: Set Of 2
• Thread Size: 1/4 Inch-32 UNF
• Material: Brass

Technical Documents

• brand_warranties.pdf