EVIL ENERGY 850 CFM 4-Barrel Street Carburetor Mechanical Secondary

Product Details

Looking for a high-performance street carburetor without the steep $699.95 price tag of the Quick Fuel Brawler 850 CFM 4-Barrel Carburetor BR-67214? Unleash serious power with the EVIL ENERGY 850 CFM 4-Barrel Carburetor—engineered for street-strip performance and offered at just $499.99.

This 850 CFM 4-barrel carburetor delivers explosive top-end RPM, lightning-fast throttle response, and reliable fuel flow for high-RPM engines. It features an electric choke for cold starts, mechanical secondaries for wide-open throttle control, and dual fuel inlets to maintain pressure under heavy loads. Tuned with race-proven #78 primary and #89 secondary jets, and built with a massive 1.56-inch venturi, it’s the ideal upgrade for enthusiasts demanding performance without overspending.

Description

Built for Durability and Easy Installation

• Easy bolt-on installation – fits most GM, Ford, and Mopar applications
• Black anodized billet aluminum throttle base plates for heat resistance and long-term durability
• 0.035-inch accelerator pump nozzle and 6.5 Hg power valve for smooth throttle response and stable idle
• Compatible with automatic transmission linkages (kickdown)

Designed for DIY enthusiasts and pros alike, this 850 CFM 4-barrel carburetor is easy to install—just bolt it on with standard hardware and you’re ready to roll. No complex tuning required.

Optimized for Street and Strip

This 850 CFM 4-barrel carburetor is built for high-RPM engines that demand precise fuel delivery and aggressive airflow. Featuring a square bore design, it integrates seamlessly with most aftermarket performance intake manifolds.

• Electric choke for quick cold starts
• Mechanical secondaries for full-throttle acceleration
• Dual fuel inlets for consistent fuel flow under high load
• #78 primary and #89 secondary jets – race-proven tuning
• 1.56-inch venturi diameter and 1.75-inch throttle bores – massive airflow for high-output builds

Perfect for high-output builds, this high-performance street carburetor ensures a precise air-fuel mixture, enhancing combustion efficiency and maintaining engine stability at high RPMs.

Durable Billet Construction

Built to last, the black anodized billet aluminum throttle base plate delivers excellent corrosion resistance, heat tolerance, and superior throttle shaft stability for consistent long-term performance.

Why Choose EVIL ENERGY Street Carburetor

The EVIL ENERGY 850 CFM 4-Barrel Street Carburetor offers high-performance features at a more affordable price than major competitors like the Quick Fuel Brawler BR-67214.

Race-Ready Performance

Designed for street and strip use, this carburetor delivers strong top-end horsepower, fast throttle response, and stable high-RPM fuel delivery.

Easy Installation

Bolt-on installation with no complex tuning required. Compatible with most square-bore intake manifolds and automatic transmission linkages.

Built to Last

Equipped with a black anodized billet aluminum throttle base, this carburetor resists heat and corrosion while providing long-term throttle shaft stability.

Better Value

At $499.99, it delivers the same 850 CFM airflow and performance specs as more expensive brands, helping you save without compromising quality.

⚠️ APPLICATION RESTRICTIONS:

Not Fit for boats

Fuel inlet thread is 7/8-20in

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

• 1965 and older U.S. manufactured California Certified vehicles
• 1967 and older U.S. manufactured Federally Certified vehicles
• 1967 and older Foreign manufactured vehicle

The following vehicles are considered Emissions Controlled Vehicles:

• 1966 and newer U.S. manufactured California Certified vehicles
• 1968 and newer U.S. manufactured Federally Certified vehicles
• 1968 and newer Foreign manufactured vehicle

FAQs

Q1: How much horsepower does a 850 CFM carburetor support?
A1: A properly tuned 850 CFM 4 barrel carburetor can typically support up to 500+ horsepower, depending on your engine’s displacement, cam profile, and overall setup. The EVIL ENERGY 850 CFM carburetor is designed for high-performance builds that demand serious airflow.

Q2: What does 850 CFM mean on a carburetor?
A2: CFM stands for Cubic Feet per Minute—it measures the amount of air the carburetor can flow. A 780 CFM carb delivers 850 cubic feet of air per minute, ideal for mid to large displacement V8 engines that operate at higher RPMs.

Q3: Will a 4 barrel carburetor increase horsepower?
A3: Yes, upgrading to a 4 barrel carburetor—especially a performance unit like the EVIL ENERGY Carburetor—can significantly improve horsepower by increasing air-fuel delivery and throttle response, especially in high-revving engines.

Q4: What is the best 850 CFM carburetor for street and strip use?
A4: The EVIL ENERGY 850 CFM 4 barrel carburetor offers electric choke, mechanical secondaries, CNC-machined body, and dual fuel inlets, making it a top choice for enthusiasts seeking street drivability with race-ready power.

Q5: Can you put a 850 CFM carburetor on a stock 350 engine?
A5: Yes, but it depends on your engine build. A stock 350 small block may be over-carbureted with 850 CFM, but with headers, performance cam, and a high-flow intake, the EVIL ENERGY 850 CFM carb will shine.

Q6: How do I know if I need a 850 CFM carburetor?
A6: Use this formula: Engine CID × Max RPM ÷ 3456 = Required CFM. If the result is near 850, you're a great candidate. If you're unsure, the EVIL ENERGY team offers fitment advice for custom builds.

Q7: Is a vacuum or mechanical secondary better for performance?
A7: For aggressive builds or racing, mechanical secondaries—like those in the EVIL ENERGY 850 CFM carburetor—deliver instant throttle response and better wide-open performance.

Q8: Can I install the EVIL ENERGY carburetor myself?
A8: Yes! Our carburetors are designed for plug-and-play installation. Bolt it on, connect the linkage and fuel lines, and you're good to go—no tuning required in most setups.

Q9: Does the EVIL ENERGY 850 CFM carburetor fit Ford AOD transmissions?
A9: Absolutely. This carb is compatible with Ford AOD transmission linkages, making it a perfect fit for many Ford small-block applications.

Q10: What’s the difference between 600 CFM and 850 CFM carbs?
A10: A 600 CFM carburetor suits small to mid-size engines, while a 850 CFM carb is better for high-performance or large displacement engines that require greater airflow at higher RPMs.