HENKYO Holley Carburetor Air Bleed Jet Assortment 40‑Pack (.025–.070 in.) 10-32 Brass for Precise Tuning

This assortment supplies mechanics and DIY tuners with forty precision-cut brass air bleeds in ten popular sizes, each with 10-32 threads and easy-to-fit geometry for Holley carburetor applications. Designed for detailed airflow adjustments, the kit covers a broad range of bleed diameters from .025 to .070 inches, giving you control over idle, transition, and metering airflow characteristics without fabricating custom parts.

Which bleed sizes are included and why those increments matter?

The kit contains ten diameters (.025, .030, .035, .040, .045, .050, .055, .060, .065, .070 inches), with four pieces of each size. The stepped increments let you fine-tune how much air bypasses the main fuel circuits, which can affect mixture strength and throttle response.

• 10 sizes cover delicate to coarse airflow adjustments
• Four pieces per size for backup or multi-carb setups
• 10-32 standard thread fits many Holley-style bleed housings
• Brass construction resists corrosion and machines cleanly

How do these air bleeds improve carburetor tuning on the street or track?

Swapping air bleeds changes the ratio of air routed around fuel circuits, letting you dial in throttle response, idle quality, and part-throttle drivability without changing jets or needles. Small changes in bleed diameter can yield noticeable differences, so having a range allows iterative tuning without modifying other components.

• Quick, reversible changes to airflow tuning
• Reduces trial-and-error by offering incremental size steps
• Supports both single and multi-carb installations with spare pieces
• Works alongside fuel jets, needles, and power valves for balanced setups

Are these bleed jets easy to install and compatible with my carburetor?

Each bleed has a 10-32 thread and is sized to fit Holley-style air bleed fittings and housings; installation simply requires removing the old bleed and threading in the new one. No special tools are necessary beyond a small screwdriver or a 10-32 compatible driver, and the brass material cuts smoothly to seat properly.

• 10-32 thread matches common Holley bleed bores
• Brass seats neatly for leak-free seating when installed correctly
• Works with most aftermarket and OEM Holley-type carburetors
• Swap sizes quickly during bench tuning or on-vehicle adjustments

What quality and longevity can I expect from the HENKYO air bleed kit?

Machined from brass with attention to thread and bore accuracy, these bleeds hold dimension under normal operating conditions and resist corrosion better than soft metals. They are consumable tuning parts but provide reliable service life when handled and installed properly.

• Brass construction for corrosion resistance and consistent machining
• Fine thread turning minimizes galling during installation
• Multiple pieces per size reduce downtime if a bleed is lost or damaged
• Packaged to keep sizes organized during tuning sessions

Who is this for: This HENKYO 40-pack is built for car enthusiasts, engine builders, and performance tuners who work with Holley-style carburetors and want an organized, wide-ranging set of air bleeds for bench or track tuning. It’s also useful for restoration projects where original-size bleeds are missing, or for anyone wanting to experiment with precise airflow changes without permanent carburetor modification.