Main Jets (2)

Enhance your engine's performance with HOLLEY Main Jets (part number 12289), designed to optimize the air and fuel mixture for maximum efficiency.

• Precision-engineered to ensure accurate fuel delivery, improving throttle response and overall engine performance.
• Lightweight design (only 0.025 lbs) allows for easy installation without adding unnecessary weight to your vehicle.
• Durable construction ensures long-lasting reliability, so you can trust your engine to run smoothly.

These Main Jets are essential for tuning your carburetor, providing the perfect balance for optimal combustion.

Upgrade your vehicle's fuel system with HOLLEY Main Jets for improved performance and reliability.