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Custom Speed Shop Requests

Welcome to the Custom Shop E-mail System. To provide you with the most accurate and timely answers to your custom shop questions, please fill out the technical information section below. Please fill out the form as completly as possible. This will allow the techs to properly answer your questions without any delay. In order to be contacted regarding your Custom Shop Request you must provide an email address.

For any carburetor questions, you must provide the list number of the carb off the air horn or body. Please keep in mind that some questions may better be answered over the phone. Please direct these to our Tech Service phone lines at:

Holley Performance:
Toll Free: 1-866-GOHOLLEY or local 270-781-9741 between 8 am and 5 pm CST

Please allow up to 48 hours for an answer, and thank you for your business!

Custom Shop Request Form

Product Information
Part Number Description Purchase Date
Your Contact Information
Name Email Daytime Phone
Your Vehicle
Make Model Model Year
Type Drive Type
Your Engine
Engine Brand [Required] Engine Size
Vacuum at Idle Carb Manufacturer
Carb Model/Type Ex. 4150, 2-Barrel, etc. Carb List Number
Your Request
Describe in detail your request.

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