Holley Renew Kit Carburetor Rebuild Kit 37-935 — Complete Gasket & Metering Repair Kit for Performance Holley Carbs

Holley 37-935 Renew Kit is a complete carburetor rebuild kit with genuine Holley components designed to restore and refine Holley performance carburetors for street, race or marine use.

If your Holley carburetor shows wear, leaks, or inconsistent tuning, the 37-935 Renew Kit supplies factory-quality replacement parts plus tuning extras and clear instructions to bring carb performance back to specification. This kit bundles Holley-approved gaskets, seals, metering parts and additional pieces intended to simplify a thorough rebuild and speed up synchronization and jetting work.

What parts are included and why do they matter?

The 37-935 kit contains Holley-manufactured gaskets, seals, metering blocks components and supplemental parts that replace the wear items in most Holley performance carburetors. Using original-equipment pieces reduces mismatch, leakage and erratic fuel metering versus generic kits.

• Complete set of gaskets and sealing washers to prevent vacuum and fuel leaks
• Metering parts and replacement pieces for consistent fuel delivery
• Extra components aimed at performance tuning and adjustment
• Parts neatly packaged in a tray for easy organization during rebuild

How does this kit simplify a rebuild for a DIY mechanic?

Holley packages the kit so hobbyists and professional techs can perform a step-by-step overhaul with fewer trips to the parts counter. The included instructions and tuning guide walk through disassembly, inspection, reassembly and baseline tuning so you can restore function more confidently.

• Step-by-step rebuild instructions included for systematic teardown
• Detailed tuning guide to establish baseline jetting and adjustments
• Parts tray keeps components organized and reduces reassembly errors
• Competitively priced to lower rebuild cost vs buying parts individually

Will this kit fit my Holley performance carburetor model?

The Renew Kit is designed to serve a broad range of Holley performance carburetors; it’s intended as a general rebuild solution rather than a model-specific master kit. Confirm compatibility with your carburetor series or consult Holley documentation to ensure the 37-935 contains the exact items your unit requires.

• Compatible with many Holley performance carburetor families—check model fitment
• Contains common wear items used across Holley performance carbs
• Extra tuning parts help with performance-oriented adjustments
• If unique parts are needed, Holley parts catalog can identify match requirements

How will a rebuild using this kit affect drivability and tuning?

Replacing aged gaskets, seals and metering components corrects leaks and restores predictable fuel metering, which improves idle quality, throttle response and the ability to reach consistent tuning settings. The extra tuning pieces let you experiment with jetting and adjustments for better performance without hunting down rare service components.

• Eliminates common vacuum and fuel leaks that cause poor idle and stumble
• Restores stable metering for repeatable tuning and consistent drivability
• Extra parts let you test alternate configurations during tuning sessions
• Helps get carb back to factory-like operation for street or race use

Who is this for: The Holley 37-935 Renew Kit is aimed at weekend restorers, performance enthusiasts and professional mechanics who want a reliable, Holley-approved set of replacement parts for performance carburetors. It’s ideal if you need a practical, organized rebuild package that includes tuning guidance and extra components to support street, race, or marine applications without sourcing individual parts.