Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy Nascar Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds & engine dress-up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies we can give you the edge you need over the competition!
Installed the Holley 20-78 pump arm, and while it worked initially, it started showing wear after a few months. I expected better durability based on the reviews. Might have to look for a sturdier option next time.
E
Emily Nguyen
Arrived a bit late, but worth the wait
I was worried when my Holley accelerator pump arm didn't arrive on time, but once I got it, I was happy. It fit my carburetor perfectly and improved my car's responsiveness. Just wish shipping was faster next time!
S
Samantha Lee
Did the job but had some trouble
The accelerator pump arm works fine, but I had a bit of trouble getting the alignment right. Once it was set up, I could feel the difference. Just wish the instructions were clearer, had to figure it out on my own.
J
Jordan Patel
Great performance boost
This Holley pump arm really made a difference in my engine's performance. I noticed smoother acceleration right away. The installation was straightforward and took less than an hour. Totally satisfied with my purchase!
M
Marco Hernandez
Solid upgrade for my carburetor
I installed the Holley 20-78 accelerator pump arm on my classic car, and it fits perfectly. It really improved the throttle response, making driving more enjoyable! The quality feels solid, and it was easy to install, which is a plus.
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FAQs
Have a question ? We are here to help.
Is the shipping free?
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 is the size of the Holley 20-78 Accelerator Pump Arm?A: The Holley 20-78 Accelerator Pump Arm measures four point three inches in length, three point twenty-five inches in width, and three point fifteen inches in height.
Q: What materials are used in the Holley 20-78 Accelerator Pump Arm?A: This product is made from high-quality plastic, ensuring durability and reliable performance in fuel systems.
Q: What is the capacity of the Holley 20-78 Accelerator Pump Arm?A: The capacity of the Holley 20-78 Accelerator Pump Arm is thirty cubic centimeters, suitable for optimal fuel delivery.
Q: How do I install the Holley 20-78 Accelerator Pump Arm?A: To install the Holley 20-78 Accelerator Pump Arm, follow the manufacturer's instructions for your specific carburetor model, ensuring a secure fit.
Q: Is the Holley 20-78 Accelerator Pump Arm compatible with all carburetors?A: No, the Holley 20-78 Accelerator Pump Arm is specifically designed for Holley carburetors, ensuring optimal compatibility and performance.
Q: What are the key features of the Holley 20-78 Accelerator Pump Arm?A: The key features include genuine Holley quality parts, which provide reliable performance and longevity in automotive applications.
Q: How do I clean the Holley 20-78 Accelerator Pump Arm?A: To clean the Holley 20-78 Accelerator Pump Arm, use a mild detergent and warm water, avoiding harsh chemicals that could damage the plastic.
Q: Is the Holley 20-78 Accelerator Pump Arm safe for automotive use?A: Yes, the Holley 20-78 Accelerator Pump Arm is designed for automotive use and meets safety standards for performance fuel systems.
Q: How should I store the Holley 20-78 Accelerator Pump Arm?A: Store the Holley 20-78 Accelerator Pump Arm in a cool, dry place, away from direct sunlight to prevent damage to the plastic material.
Q: Is the Holley 20-78 Accelerator Pump Arm suitable for racing applications?A: Yes, the Holley 20-78 Accelerator Pump Arm is suitable for racing applications, providing the performance needed for competitive racing.
Q: How does the Holley 20-78 Accelerator Pump Arm compare to other models?A: The Holley 20-78 Accelerator Pump Arm is known for its high-quality construction and performance, making it a preferred choice among enthusiasts.
Q: What should I do if my Holley 20-78 Accelerator Pump Arm arrives damaged?A: If your Holley 20-78 Accelerator Pump Arm arrives damaged, contact the retailer for return options or a replacement as per their policy.
Q: Does the Holley 20-78 Accelerator Pump Arm come with a warranty?A: Yes, the Holley 20-78 Accelerator Pump Arm typically comes with a manufacturer's warranty, covering defects in materials and workmanship.
Q: Can I use the Holley 20-78 Accelerator Pump Arm with fuel injected engines?A: No, the Holley 20-78 Accelerator Pump Arm is designed specifically for carbureted engines and is not compatible with fuel injection systems.
Q: What type of vehicles can benefit from the Holley 20-78 Accelerator Pump Arm?A: The Holley 20-78 Accelerator Pump Arm is ideal for street performance, race, and marine applications, enhancing fuel system efficiency.