122-78 Holley Jet
122-78 Holley Jet
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122-78 Holley Jet
The 122-78 Holley Performance Carburetor Metering Jet is an essential component for optimizing your vehicle's fuel system. Designed for precision and performance, this metering jet is perfect for those looking to enhance their engine's efficiency.
Key Features:
- Control Fuel Flow: These metering orifices expertly regulate the flow of fuel into the metering system, ensuring optimal performance.
- Tune for Performance: Changeable design allows for easy adjustments to fine-tune your carburetor setup.
- Flow Capacity Rating: Rated in cubic centimeters per minute, providing you with a clear understanding of performance capabilities.
- Flow Tested: Each Holley main jet is rigorously flow tested and stamped with the correct number to guarantee reliability.
- Compatibility: Specifically designed for Holley Model 2010 and 2300 types, ensuring a perfect fit for your engine.
- Material Quality: Constructed from high-quality materials (4011) for durability and long-lasting performance.
- Jet Drill Size: With a precise drill size of 0.087 inches, this jet ensures optimal fuel delivery.
- Limited Warranty: Comes with a limited 90-day warranty for your peace of mind.
Specifications:
- Fuel Type: Gasoline
- Quantity: 4150
- End Size: 4010
Upgrade your carburetor today with the 122-78 Holley Jet and experience enhanced fuel flow control and performance tuning capabilities!
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

