EVIL ENERGY 850 CFM Race 4-Barrel Carburetor Mechanical Secondary

The EVIL ENERGY 850 CFM 4-Barrel Carburetor is a high-performance carburetor engineered for racing and extreme performance builds, delivering the airflow and precise fuel control demanded by high-output V8 engines. With an 850 CFM airflow capacity, this 4-barrel carburetor is optimized for modified, high-RPM applications—making it ideal for drag racing, competitive track use, or heavily tuned street builds where maximum horsepower and throttle response are critical.

Featuring a mechanical secondary throttle, the EVIL ENERGY 850 CFM 4-Barrel Carburetor provides instantaneous power delivery by opening the secondary barrels directly in sync with throttle input. This design eliminates lag and ensures rapid acceleration with consistent high-RPM stability, a must-have for race conditions where split-second response makes the difference.

Pre-calibrated for race-ready performance, it includes #76 main jets, #84 secondary jets, a 0.033-inch accelerator pump nozzle, and a 4.5HG power valve—balancing airflow and fuel atomization to support aggressive engine builds without requiring major post-installation adjustments. Constructed entirely from 100% new components (no remanufactured parts), this carburetor features a durable alloy body, square bore flange, compact 3.25-inch height, and dual fuel inlets for stable fuel supply under high load.

Designed for versatile installation, it is compatible with most race-spec intake manifolds and integrates with GM, Ford, and Chrysler automatic transmission shift linkages (note: additional fitment parts may be required, as is typical with performance carburetors).

Compared to the Quick Fuel 850 CFM 4-Barrel Carburetor BR-67201 ($744.95), the EVIL ENERGY 850 CFM 4-Barrel Carburetor delivers equal durability and race-proven performance at only $419.99—offering a savings of more than $320 without compromising quality or power.

Key Features

• Maximum Airflow – 850 CFM Capacity: Delivers race-level airflow to support high-RPM V8 engines, ideal for drag racing, track use, and performance street builds.
• Mechanical Secondary Throttle: Direct throttle response with no delay—secondary barrels open instantly for rapid acceleration and consistent high-RPM power.
• Pre-Calibrated for Performance: Includes #76 primary jets, #84 secondary jets, 0.033" accelerator pump nozzle, and 4.5HG power valve for optimized fuel-air delivery.
• Durable Alloy Construction: Built from 100% new components with a corrosion-resistant finish, ensuring long-term reliability under extreme conditions.
• Dual Fuel Inlets: Guarantees a stable fuel supply during high-load racing demands, preventing lean conditions at wide-open throttle.
• Easy Installation & Fitment: Square bore flange design fits most race-spec intake manifolds; integrates with GM, Ford, and Chrysler auto transmission linkages.
• High Value Performance: At $419.99, the EVIL ENERGY 850 CFM 4-Barrel Carburetor offers comparable performance to the Quick Fuel BR-67201 ($744.95), saving over $320.

Why Choose Evil Energy 850 CFM Race 4-Barrel Carburetor?

1. Unmatched Value for Race-Grade Performance

• Premium race carburetors, such as the Brawler Race 850 CFM Carburetor, are priced at $744.95, offering strong performance for serious racers.
• Our carburetor, at $419.99, delivers matching core race-ready features—850 CFM airflow, mechanical secondaries, dual fuel inlets, and precision calibration—while providing over $320 in savings. It's a cost-effective way to get race-level performance without overspending.

2. Mechanical Secondaries for Instant Responsiveness

• Vacuum-operated secondaries, while smooth for daily use, can introduce slight lag at high RPM—critical time lost in racing scenarios.
• Our mechanical secondary throttle opens directly with throttle position, ensuring instant power delivery. This responsiveness is key for racing, where split-second acceleration can make or break a finish.

3. 100% New Construction for Race-Day Reliability

• Remanufactured carburetors or budget alternatives often reuse worn components, which can fail under the extreme demands of racing (e.g., high RPM, frequent throttle cycling).
• Our carburetor is built entirely from new parts, from jets to throttle shafts, ensuring consistent performance and reducing the risk of in-race failures. It's designed to hold up to the rigors of track use.

4. Pre-Calibrated for Race Setups

• Many carburetors require extensive custom tuning (jet swaps, power valve adjustments) to work with high-output race engines, adding time and cost before they're track-ready.
• Ours comes pre-calibrated with #76/#84 jets, a 0.033-inch accelerator nozzle, and a 4.5HG power valve—tuned specifically for high-RPM, high-load conditions. Most users can install it and hit the track with minimal adjustments.

5. Flexible Fitment Across Race Builds

• Race carburetors are often limited to specific engine makes or intake manifolds, requiring custom adapters that add weight and complexity—undesirable in race setups.
• Ours features a square bore flange and is designed to work with GM, Ford, and Chrysler automatic transmission shift linkages (with possible additional parts for specific setups). This flexibility makes it easier to integrate into diverse race builds, from GM small blocks to Ford V8s.

FAQs About EVIL ENERGY 850 CFM Race 4-Barrel Carburetor

1. Is this carburetor suitable for daily driving?
No—it's designed for racing or extreme performance builds. It lacks a choke (common in race carburetors) and features mechanical secondaries, which are optimized for rapid acceleration rather than daily-driving smoothness. For daily use, a carburetor with an electric choke and vacuum secondaries is more appropriate.

2. What vehicles is it compatible with?
It works with GM, Ford, and Chrysler vehicles with automatic transmission shift linkages. As with most race carburetors, specific setups (e.g., custom intake manifolds or linkage) may require additional fitment parts—we recommend checking your build's specifications before installation.

3. Does it require tuning after installation?
It comes pre-calibrated for high-performance setups, so most users won't need extensive tuning. Minor adjustments (e.g., idle speed) may be needed for highly specialized builds (e.g., forced induction or custom camshafts), but it's race-ready out of the box for most setups.

4. Why does it have dual fuel inlets?
Dual fuel inlets ensure a stable fuel supply under extreme load (e.g., high RPM, full throttle), which is critical for racing. They prevent fuel starvation, a common issue in high-output engines with single inlets during aggressive acceleration.

5. Will it fit in a tight race engine bay?
With a height of 3.25 inches, it has a compact profile that fits most race-spec engine bays, including modified or custom builds with limited space. We recommend measuring the available space (from intake manifold to hood or engine bay components) to confirm fitment.

6. Is it remanufactured?
No. It's constructed entirely from new components, with no reused parts. This ensures consistent quality and reliability, which is essential for racing where component failure is not an option.

7. How does it compare to the Brawler Race 850 CFM Carburetor?
Both are 850 CFM race carburetors with mechanical secondaries, dual fuel inlets, and square bore flanges—core features for race performance. The key difference is price: our carburetor is $419.99, while the Brawler model is $744.95—we offer the same race-ready performance at a significantly lower cost.

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