.042in Accelerator Pump Squirters

Tuning a performance carburetor requires precision, and these .042in Accelerator Pump Squirters are essential for optimizing off-the-line response. Designed for Holley carburetors, these discharge nozzles are the primary tool for eliminating the dreaded hesitation or stumble that occurs when the throttle plates snap open. By increasing the volume of the initial fuel shot, these components ensure the engine receives the enrichment necessary to bridge the gap between the idle circuit and the main metering system.

These .042in Accelerator Pump Squirters feature a straight-type discharge path and are precision-machined from aluminum for consistent flow characteristics. The .042-inch internal diameter is a significant step up from standard factory sizes, allowing for a more aggressive fuel curve during rapid acceleration. The natural aluminum finish ensures durability against modern fuel additives while maintaining a clean, professional appearance within the carburetor bowl assembly.

Sold as a pair, these Advanced Engine Design nozzles are a direct fit for most Holley-style carburetors used in high-performance automotive applications. Whether you are dialing in a drag car or a heavy street machine with a high-lift camshaft, these squirters provide the fuel volume needed to prevent lean spikes. Proper installation helps achieve a seamless transition across the RPM range, making them a vital specification for any serious engine tuner looking to maximize throttle efficiency.