850CFM 4 Barrel Performance Race Carburetor Double Pumper Mechanical BR-67201

850CFM 4 Barrel Performance Race Carburetor Double Pumper Mechanical BR-67201

The 850CFM 4 barrel performance race carburetor is a double pumper mechanical secondary unit built for high-output V8 engines, and it carries the BR-67201 reference for easy matching against factory cross numbers.

Overview

This 850CFM 4 barrel performance race carburetor delivers large volumes of air and fuel for engines built to run at wide open throttle. The double pumper mechanical secondary design feeds both venturis the moment the throttle opens, so response stays sharp on track and off. It suits racers, engine builders, and gearheads running a built small block or big block that needs serious airflow.

Built For Performance

• 850CFM airflow rating supports high-horsepower, high-rpm V8 combinations
• Double pumper mechanical secondaries open both barrels together for instant fuel delivery
• Mechanical choke and throttle linkage keep operation fully manual and predictable
• Four barrel body with dual accelerator pumps feeds fuel on sudden throttle input
• Aluminum construction keeps weight low while resisting heat soak
• BR-67201 reference number allows direct comparison against OEM cross listings

Specs At A Glance

On-The-Job Use

• Drag strip and circle track builds chasing maximum airflow
• Modified street machines with aggressive cam and intake packages
• Marine and off-road V8 applications needing instant throttle response
• Engine dyno testing and tuning sessions with wide open throttle pulls

Good To Know

Q: What makes a double pumper different from a vacuum secondary carburetor? A: A double pumper uses mechanical linkage so the secondaries open on throttle input rather than waiting for engine vacuum, which gives faster response on built engines. It usually wants more tuning attention but rewards that with sharper acceleration.

Q: Is 850CFM too much for a mild engine? A: An 850CFM 4 barrel performance race carburetor generally suits engines with healthy displacement, head work, and cam duration. On a stock or lightly modified engine it can run rich and lose low-end signal, so match airflow to your build.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.