Mr. Gasket Performance Header Gaskets; 1.625-Inch Round Ports (80-91 V8 Firebird)Find parts that fit my vehicle

Precision Fuel Metering. The Carburetor Standard Main Jet is designed to regulate fuel flow accurately within the carburetor system, optimizing engine performance. It is used to tune the air-fuel mixture by controlling fuel volume to meet specific engine demands, which enhances efficiency and power delivery. This component is essential for maintaining proper carburetor function and achieving consistent combustion.

Durable Brass Construction. Manufactured from high-quality brass, the jet ensures resistance to corrosion and long-term durability. Its precise 1/4-32 threading and standardized .049-inch orifice diameter guarantee compatibility and reliable fitment. The jet’s surface finish supports smooth fuel flow and consistent metering.

Easy Installation. Installation requires no special tools or modifications such as drilling, making it accessible for professional mechanics and enthusiasts alike. It fits directly into compatible Holley carburetor models with a simple screw-in process.

Warranty. Comes with a manufacturer’s limited 90-day warranty covering defects in materials and workmanship.

Application. Specifically fits the 1980-1991 V8 Firebird models, providing an exact replacement for standard main jets in these vehicles without additional modifications.

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