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
- No EU import duties. - Ships within 3-5 business days. (USA) - Ships with 8-12 business days. (International)
⚠️ 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!
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 Holley 37-1542 Vacuum Secondary Kit used for?A: The Holley 37-1542 Vacuum Secondary Kit is designed to enhance the performance of all Holley performance carburetors. It provides essential components for tuning and optimizing carburetor functionality, ensuring your engine runs efficiently.
Q: Is the Holley 37-1542 kit compatible with all Holley carburetors?A: Yes, the Holley 37-1542 Vacuum Secondary Kit is compatible with all Holley performance carburetors, making it a versatile choice for those looking to improve their carburetor's performance.
Q: What features come with the Holley 37-1542 Vacuum Secondary Kit?A: The kit includes genuine Holley quality parts, extra components for performance tuning, step-by-step instructions, and a detailed tuning guide to assist users in installation and setup.
Q: How do I install the Holley 37-1542 Vacuum Secondary Kit?A: Installation of the Holley 37-1542 kit is straightforward, thanks to the included step-by-step instructions. It is recommended to follow the instructions closely to ensure proper installation and optimal performance.
Q: Can I use the Holley 37-1542 kit for racing applications?A: Absolutely! The Holley 37-1542 Vacuum Secondary Kit is ideal for both street performance and racing applications, providing the necessary parts to fine-tune your carburetor for maximum power and efficiency.
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