Holley Carburetor Rebuild Kit 37-754 Renew Kit — Complete gasket, jets & tuning guide

Holley 37-754 Renew Kit is a complete carburetor rebuild kit containing genuine Holley replacement parts and extras to restore and tune Holley performance carburetors.

Whether you’re refreshing a daily-driver carburetor or preparing a race engine, the Holley 37-754 Renew Kit supplies the common wear parts, tuning pieces and instructions needed for a thorough rebuild. This kit is designed to service Holley performance carburetors, delivering authentic OEM components that fit correctly and reduce the guesswork during reassembly and calibration.

What exactly comes in the 37-754 Renew Kit?

The kit includes all the typical consumable parts required for a routine rebuild plus several performance tuning items. Holley packages the parts in a tray and supplies a clear instruction and tuning guide to help you complete the job efficiently.

• Gaskets and seals for full teardown and reassembly
• Main and power valves, metering parts and jets for calibration
• Extra tuning components to adjust fuel delivery and response
• Step-by-step instruction booklet and detailed tuning guide

How does this kit help with carburetor tuning and performance?

Beyond basic refresh parts, the Renew Kit contains extra pieces intended for performance tuning—so you can tailor fuel flow for different engines or operating conditions. The included tuning guide explains which parts affect mixture and acceleration for straightforward adjustments.

• Swap jets and needles to adapt air/fuel ratio
• Use extra parts to test different calibrations without stripping the carb again
• Follow the tuning guide to diagnose and improve throttle response

Will the parts in this kit work with my Holley performance carburetor?

The Renew Kit is formulated to serve Holley performance carburetors; compatibility depends on your carburetor family and model. It’s ideal for many common Holley performance units, but verify fitment against your carb model number before purchase.

• Designed for Holley performance carburetor lines
• Includes universal tuning components for varied applications
• Check your carb’s model to confirm exact part matches

How difficult is the rebuild process using this kit?

Holley supplies step-by-step instructions and a detailed tuning guide, making the rebuild accessible to experienced DIYers and shop technicians alike. Basic mechanical skills, common tools and a clean workspace are all you need to perform a successful rebuild.

• Instruction booklet walks through disassembly and reassembly
• Tuning guide helps with jetting and adjustment decisions
• Parts tray keeps small components organized during the job

Who is this for: The Holley 37-754 Renew Kit is aimed at automotive enthusiasts, restoration shops and motorsport teams who maintain or upgrade Holley performance carburetors. If you service your vehicle’s carburetor, want to optimize fuel delivery, or need genuine replacement components for reliable fit and predictable tuning, this kit gives the parts and documentation to get the job done.