Collection: Carburetor Jets, Metering & Tuning Parts

Dial in fuel delivery, throttle response, and overall carburetor performance with precision carburetor jets, air bleeds, metering components, power valves, discharge nozzles, calibration kits, and tuning tools. Whether you are correcting an overly rich or lean mixture, tuning a carburetor for engine modifications, or replacing worn calibration components, the right metering parts give you greater control over how fuel is delivered throughout the operating range.

Carburetor jets are one of the primary tools for adjusting fuel flow through the main metering system, while air bleeds allow finer control of the air mixed into specific fuel circuits. Metering blocks and related components provide the foundation for many of these adjustments and are available for replacement, repair, conversion, and performance applications. Power valves help provide additional fuel enrichment as engine load increases, while accelerator pump discharge nozzles can be changed to alter the pump shot delivered during throttle opening.

For more complete tuning jobs, carburetor calibration kits provide assortments of commonly changed components so multiple combinations can be tested without purchasing each piece individually. We also carry carburetor adjusting tools designed to make jet changes, mixture adjustments, and trackside tuning easier. From street-driven classics to drag cars and high-performance carbureted builds, shop the components needed to accurately tune your carburetor for your engine combination.