Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
These Metering Orifices Control Fuel Flow Into The Metering System. They Are Rated In Flow Capacity ''Cubic Centimeters Per Minute'' And Are Changeable For Tuning Purposes. The Shape Of The Entry, Exit, And Size Determines Flow. All Holley Main Jets Are Flow Tested And Then Stamped With The Correct Number.
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
Frequently Asked Questions
Q: What vehicles are compatible with the Holley 122-89 Carburetor Standard Main Jet?A: The Holley 122-89 Carburetor Standard Main Jet is compatible with all Holley Model carburetors including 2010, 2300, 4010, 4011, 4150, 4160, and 4500.
Q: What is the purpose of changing the main jets in a carburetor?A: Changing the main jets in a carburetor helps to control fuel flow into the metering system, allowing for precise tuning of the fuel-air mixture for optimal engine performance.
Q: What are the size options available for the Holley main jets?A: The Holley main jets are available in sizes ranging from 40 to 110, providing a variety of options for tuning your carburetor to meet specific performance needs.
Q: How do I know which jet size to use for my engine?A: Choosing the right jet size depends on your engine's modifications and performance needs. It's recommended to start with the manufacturer's specifications and adjust based on performance testing.
Q: Are Holley main jets flow tested before they are sold?A: Yes, all Holley main jets are flow tested to ensure accuracy and performance, and they are stamped with the correct number for easy identification.
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