High-Performance Carburetors for Street & Race

Shop High-Performance Carburetors by Brand

JEGS carries high-performance carburetors from the brands builders trust for street and strip. Each maker brings a different strength, so your pick often comes down to tuning style and parts support. Holley carburetors are known for a modular design and wide jetting availability, while Edelbrock carburetors are popular for out-of-the-box drivability with little tuning.

Here's a quick look at the brands you'll find in this carburetor category:

• Holley: modular 4-barrel designs with wide parts and jetting support
• Edelbrock: street-friendly carburetors tuned for easy starts and steady idle
• Demon Carburetion: race-focused designs with highly tunable circuits
• Quick Fuel: billet metering blocks and adjustable air bleeds for precise tuning
• JET Performance: calibrated units matched to specific engine combinations
• JEGS: value-priced Street Fighter carburetors for common small-block and big-block setups
• UREMCO: remanufactured carburetors for OEM-style replacement

How to Choose the Right Carburetor CFM

Carburetor CFM measures the airflow a carburetor can supply, and matching it to your engine sets your throttle response and top-end power. Too much CFM can soften low-speed drivability, while too little can choke a high-rpm build. A common starting point multiplies engine displacement by peak rpm, then divides by 3,456 to estimate the airflow a naturally aspirated engine can use.

This category spans roughly 500 to 1650 CFM, so there's room for mild and serious combinations. A street small-block driven daily often lands in the 500 to 650 CFM range for crisp response. Larger street and strip engines usually step up to 650 to 850 CFM, and big-inch race combinations can use 950 CFM and beyond. Match the number to your displacement, camshaft, and how you actually drive the car, since a right-sized unit beats an oversized one.

2-Barrel vs. 4-Barrel and Secondary Types

The difference between a 2-barrel and a 4-barrel comes down to how many throttle bores feed the engine and when they open. A 2-barrel carburetor runs two bores for simple, steady fuel delivery, which suits mild engines and stock-style rebuilds. A 4-barrel adds a second pair of bores, called secondaries, that open under load for extra airflow and power.

How those secondaries open shapes how the car drives. Vacuum secondaries open gradually based on engine demand, which makes them forgiving on the street and easy to tune for heavier vehicles. Mechanical secondaries, often called a double pumper, open on a direct linkage for an immediate hit of fuel, which fits lighter cars and aggressive combinations. If you're unsure what you already have, read our guide on how to identify a Holley carburetor before you order parts.

Carburetor Spacers, Tuning Components & Accessories

A carburetor rarely works alone, so plan for the supporting parts that complete the setup. Carburetor spacers sit between the carb and intake manifold to change plenum volume and runner length. That shift can move where your engine makes power and help manage heat. Carburetor tuning components let you dial in the calibration for your combination and altitude.

Common service parts include jets, metering blocks, accelerator pump cams, power valves, and float bowl gaskets. You'll also want the fittings, fuel lines, linkage, and air cleaner that connect everything and keep it sealed. Start with the parts that match your carburetor family, since Holley and Edelbrock platforms use different components. Building a complete list up front saves return trips and helps your new carburetor run right on the first start.

Remanufactured and Replacement Carburetors

If you're restoring a vehicle or replacing a worn unit, remanufactured and OEM-style carburetors offer a bolt-on path back to stock performance. UREMCO remanufactured carburetors rebuild original cores to factory specifications, which suits Rochester and Motorcraft applications on classic cars and trucks. These units restore the correct fitment, linkage, and calibration for your engine without custom tuning.

A remanufactured carburetor can be the simpler choice when you want a known-good part rather than sourcing every small piece yourself. Rebuilding your existing carburetor is another route, and it makes sense when the core is sound and you want to keep numbers-matching parts. That path takes time, a clean workspace, and attention to detail on gaskets and adjustments. To weigh the two options, read our overview of the pros and cons of carburetor rebuild kits before you decide.