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| Brand | EVIL ENERGY |
| Barrels | 4 |
| CFM | 850 |
| Carburetor Flange | Square bore |
| Choke Type | None |
| Secondary Throttle Type | Mechanical |
| Fuel Inlet | Dual |
| Calibration | Main Jets:#76 Secondary Jets:#84 Accelerator Pump Nozzle:0.033 inch Power Valve: 4.5HG |
| Venturi Diameter |
1.57 inch |
| Throttle Bore Diameter | 1.75 inch |
| Carburetor Height |
3.25 inch |
| Compatibility | GM, Ford, Chrysler AT Shift Linkage Assemblies |
| Condition | New |

The EVIL ENERGY 850 Carburetor is a high-performance 850 cfm carburetor built for serious power and racing applications. As a true racing carburetor, it delivers rapid throttle response and strong high-RPM pull, using a mechanical secondary design to open the secondaries instantly when you need full power. Dual fuel inlets keep this 850 cfm carb supplied under wide-open throttle, preventing fuel starvation during drag launches or sustained high-load racing conditions.
Constructed from 100% new, high-strength alloy materials, the EVIL ENERGY Carburetor ensures reliability and temperature stability on track, not refurbished or remanufactured components. Performance matches the Quick Fuel BR-67201 racing carburetor, but the EVIL ENERGY 850 Carburetor offers the same airflow and horsepower capability at a more affordable price point—making it the smarter, high-value choice for performance builders.
With universal square-bore compatibility, this 850 cfm carburetor installs cleanly on GM, Ford, and Chrysler V8 intake manifolds, making it ideal for drag racing setups, street/strip builds, high-compression engines, strokers, and track-ready muscle cars.

The EVIL ENERGY 850 Carburetor is built for racers, street-strip drivers, engine builders, and hot-rod enthusiasts who need fast throttle response and reliable high-RPM power. This 850 cfm carburetor is ideal for high-compression V8s, stroker builds, and aggressive camshaft setups where airflow demand is high. Whether you’re dialing in a weekend drag car, upgrading a track-day muscle car, or building a performance street machine, this racing carburetor provides consistent fueling and strong top-end pull.
On the road and track, the EVIL ENERGY 850 Carburetor shines in:
For drivers wanting Quick Fuel BR-67201–level performance but at a more accessible price, the EVIL ENERGY 850 Carb delivers real racing results without the premium cost.

1. Race-Level Performance at a Better Price
The EVIL ENERGY 850 Carburetor delivers the same airflow and race features found in premium 850 cfm carburetor models like the Brawler/Quick Fuel BR-67201—but at a significantly lower cost. You get full 850 CFM flow, mechanical secondaries, and dual fuel inlets without paying $800+.
2. Mechanical Secondaries = Instant Power
Unlike vacuum-secondary street carbs, this 850 cfm carb uses mechanical secondaries that open directly with throttle input—providing immediate acceleration and sharper response, ideal for drag racing, high-RPM pulls, and competitive performance driving.
3. 100% All-New Construction (Not Rebuilt)
The EVIL ENERGY Carburetor is built entirely new—no reused jets, shafts, or seals. This ensures long-term reliability and stable performance under race heat cycles, wide-open throttle, and rapid RPM transitions.
4. Pre-Calibrated for Track-Ready Performance
Tuned with #76 primary / #84 secondary jets, a 0.033" pump nozzle, and a 4.5HG power valve, this racing carburetor is ready to run strong right out of the box. Only fine-tuning is needed for aggressive custom builds.
5. Fits a Wide Range of Performance Builds
With a square-bore flange, the EVIL ENERGY 850 CFM 4-Barrel Carburetor installs cleanly on most GM, Ford, and Chrysler V8 racing intake manifolds—making it easy to upgrade street/strip cars, big-block builds, strokers, and drag setups.

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

We don't just sell products; we provide in-depth expertise on every EVIL ENERGY Carburetor. To ensure you make the right choice and get the best performance from your new carb, we've prepared these exclusive guides:
Q1: Will the EVIL ENERGY 850 Carburetor fit my engine?
A: Yes. This 850 cfm carburetor fits most GM, Ford, and Chrysler V8 engines with square-bore intake manifolds. If your build uses custom linkage or aftermarket manifolds, a simple adapter may be required.
Q2: Do I need to tune it after installing?
A: The EVIL ENERGY 850 Carburetor comes pre-calibrated for racing and high-performance engines. Most users only adjust the idle and mixture screws. Highly modified builds (big cam, forced induction) may require fine-tuning.
Q3: Why does this racing carburetor use dual fuel inlets?
A: Dual inlets ensure steady, high-volume fuel flow at wide-open throttle. This prevents fuel starvation during drag launches or high-RPM pulls—critical for a true racing carburetor.
Q4: Is this carburetor new or rebuilt?
A: It is 100% new. No remanufactured or recycled internal parts. This ensures consistent performance and durability—especially important on an 850 cfm carb running at sustained high RPM.
Q5: How does the EVIL ENERGY 850 compare to Quick Fuel BR-67201?
A: Both are 850 cfm carburetors with mechanical secondaries and dual fuel inlets. The major difference:
✅ Same race-ready performance
✅ Significantly more affordable
This makes the EVIL ENERGY 850 Carburetor the better value for performance builders.
Q6: Is this carb legal for everyday road use?
A: This 850 cfm 4-barrel carburetor is intended for uncontrolled / non-emission-regulated vehicles, such as race cars, track cars, off-road builds, and classic pre-emissions V8 engines.
Enter engine parameters to calculate optimal CFM (Cubic Feet per Minute). Based on engine type and modification level, we’ll recommend the best carburetor size.
| Modification Level: | |
| Recommended CFM Range: | 0 - 0 |
Recommended Products:
| Policy | Details |
|---|---|
| Cancellation Policy | Orders can be canceled within 48 hours of placement. Refund processed in 3-5 business days. |
| Returns Policy | Returns accepted within 180 days. Full refund within 90 days; 15% fee for 90-180 days. |
| Non-Returnable Items | Only regular-priced items are eligible for refunds; sale items are non-refundable. |
| Refund Processing | If no refund received, check your bank/credit card. For ongoing issues, contact support@ievilenergy.com. |
Effective from August 25, 2024. Price drops within 7 days of purchase can be claimed.
EVIL ENERGY reserves the right to interpret, modify, or terminate this policy in accordance with applicable laws and regulations.
If you need further information or assistance, feel free to ask!












