Standard main jet used to control fuel flow into the carburetor metering system. Jet number 50 is commonly used for fine tuning fuel delivery and air/fuel ratios in performance and street applications.

All main jets are flow tested and stamped to ensure consistent and accurate fuel delivery.

• Jet number: 50
• 1/4-32 thread
• Standard main jet
• Flow-rated and stamped for accuracy

Compatibility:
• Fits Holley Models 2010, 2300, 4010, 4011, 4150, 4160, and 4500

Jet numbering is based on flow rate, not exact orifice diameter. Designed for carburetor tuning and service using components from Holley.