The fuel system meters air and fuel into the engine. American makers on this page build four-barrel carburetors from 500 to 950 cfm in North Carolina, including marine carburetors built to Coast Guard standards, and CNC-machine throttle bodies for Ford, GM, Dodge, Ram and Jeep engines.
Throttle bodies feed the intake manifold, and carburetors bolt to it, so the two are often bought together. Cold air intakes are on the air intakes page.
More types in this section ↓
BBK Performance makes throttle bodies for Ford Mustang, F-Series and Raptor trucks, Chevy Camaro, Corvette and Firebird, Dodge and Ram Hemi, and Jeep engines, machined from cast and billet aluminum, in single- and twin-blade designs. Many are 50-state legal, and BBK also sells reconditioned units.
Made in: USA. BBK's product pages say its throttle bodies are designed and manufactured in the USA from CNC-machined aluminum castings.
Source: BBK throttle bodies, checked 10/2026
DeLand, FL
Edelbrock makes four-barrel carburetors from 500 to 950 cfm: Performer Series street carbs, AVS2 and AVS2 Off-Road carbs, VRS-4150 race carbs, and Marine Series carbs built to U.S. Coast Guard standards, plus matched manifold-and-carb kits, calibration kits and service parts.
Made in: Sanford, NC (Edelbrock Carburetor Division). The company says every Edelbrock carburetor is manufactured in the USA.
Source: Edelbrock carburetors and SlashGear, 2024, checked 10/2026
Sanford, NC
Sizing a carburetor or throttle body
Bigger is not always better. A carburetor or throttle body that flows more air than the engine can use can soften throttle response at low speed. Most makers publish sizing guides based on engine size and the rpm range you drive in.
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A company may be based in the USA while making some products elsewhere. Check the manufacturer's own site for where a specific product is made.
