Evil Energy Quick Fuel 600 CFM 4-Barrel Carburetor Vacuum-Operated Secondary Throttle

Unlock reliable power and smooth throttle response with the EVIL ENERGY 600 CFM 4-Barrel Carburetor, engineered for street performance and mild to moderate racing builds. Delivering 600 CFM airflow, this 4-barrel carburetor provides an optimized air-fuel mixture across all RPM ranges, ensuring consistent acceleration, efficient fuel atomization, and stable idle performance.

Equipped with a vacuum-operated secondary throttle, it delivers smooth, progressive power transitions without abrupt surges, ideal for daily drivers and street enthusiasts. The built-in electric choke guarantees easy cold starts, while adjustable metering rods allow quick, tool-free tuning to accommodate different fuels or engine modifications.

Crafted entirely from new components, the EVIL ENERGY 600 CFM 4-Barrel Carburetor features a square bore flange, compact 3.25-inch height, and single fuel inlet for simplified installation. It’s compatible with most GM, Ford, and Chrysler automatic transmission linkages, offering versatile fitment across popular V8 engines.

Compared to the Quick Fuel 600 CFM 4-Barrel Carburetor BR-67270 ($479.95), the EVIL ENERGY 600 CFM 4-Barrel Carburetor delivers equal performance and reliability at only $419.99, saving $60 without compromising quality—making it the smart choice for performance enthusiasts seeking value and precision.

Key Features – EVIL ENERGY 600 CFM 4-Barrel Carburetor

600 CFM Balanced Performance – 4-barrel design with 600 CFM airflow, optimized for street and daily vehicles. Vacuum-operated secondary throttle ensures smooth, lag-free transitions, balancing power and drivability across all RPM ranges.

Electric Choke for Easy Starts – Built-in electric choke delivers reliable cold starts and stable idle without manual adjustment, perfect for daily drivers and mild performance builds.

Precision Pre-Calibration – Factory-set with #70 main jets, #74 secondary jets, 0.031-inch accelerator pump nozzle, and 6.5Hg power valve for optimal air-fuel mixture straight out of the box.

Durable & Compact Build – 100% new components (non-remanufactured) with square bore flange and 3.25-inch compact height for tight engine bays. 1.19-inch venturi and 1-11/16-inch throttle bore maximize airflow efficiency.

Broad Cross-Brand Compatibility – Works with GM, Ford, and Chrysler automatic transmission kickdown linkages (additional parts may be required). Single fuel inlet simplifies installation across most V8 setups.

Value & Performance – Provides equal or better performance than Quick Fuel 600 CFM 4-Barrel Carburetor BR-67270 at $419.99, offering a cost-effective upgrade without sacrificing quality.

Why Choose Evil Energy Quick Fuel 600 CFM Carburetor?

1. Strong Value with Comparable Performance

• Premium 600 CFM carburetors, such as the Brawler 600 CFM Diecast Carburetor, are priced at $479.95, offering solid performance for enthusiasts.
• Our carburetor, at $349.99, delivers matching core features—600 CFM airflow, vacuum-operated secondaries, electric choke, and pre-calibration—while providing $130 in savings. It's a cost-effective way to get reliable performance without the premium price.

2. Ready-to-Use Out of the Box

• Many carburetors require extensive post-installation tuning (jet swaps, power valve adjustments) to work optimally, which can be time-consuming for those with limited experience.
• Ours comes pre-calibrated with #70/#74 jets, a 0.031-inch accelerator nozzle, and a 6.5Hg power valve, tuned for balanced performance. Most users can install it and start driving with minimal adjustments, saving time and effort.

3. 100% New Construction for Long-Term Reliability

• Remanufactured carburetors often reuse components from older units, which may retain wear and introduce uncertainty in durability over time.

• Our carburetor is built entirely from new parts, from jets to gaskets, ensuring consistent quality and reducing the risk of leaks, erratic fuel delivery, or early failure. It's designed to hold up to regular use for years.

4. Flexible Fitment Across Brands

• Many carburetors are optimized for specific vehicle brands, which can require extra adapters or modifications when used with other makes, adding complexity to installation.
• Ours is designed to work with GM, Ford, and Chrysler automatic transmission shift linkages (with possible additional parts for specific setups) and fits most standard square bore intake manifolds. This flexibility reduces the need for custom modifications, making it easier to install across different vehicles.

5. Smooth Drivability for Daily Use

• Carburetors with mechanical secondaries can sometimes deliver abrupt power, which may feel less comfortable in daily driving scenarios (e.g., commuting, city driving).
• Our vacuum-operated secondaries open gradually based on engine demand, ensuring smooth power transitions. This makes it well-suited for daily use, balancing performance with everyday drivability.

FAQs About Evil Energy Quick Fuel 600 CFM 4-Barrel Carburetor

1. What vehicles is this carburetor compatible with?
It is designed to work with GM, Ford, and Chrysler vehicles with automatic transmission shift linkages. As with most universal carburetors, specific setups may require additional fitment parts to ensure a perfect match—we recommend checking your vehicle's linkage and intake manifold specifications before installation.

2. Is this carburetor remanufactured?
No. It is constructed entirely from new components, with no reused parts. This avoids hidden wear risks and ensures consistent performance from the start.

3. Do I need to tune it after installation?
It comes pre-calibrated with #70 main jets, #74 secondary jets, and a 6.5Hg power valve, so most users won't need extensive tuning. Minor adjustments (e.g., idle speed) may be needed for highly modified engines, but it's ready to use for most daily or mild performance setups.

4. How does the vacuum-operated secondary throttle work?
Vacuum-operated secondaries open gradually based on engine vacuum (a measure of engine demand), rather than opening abruptly with throttle position. This ensures smooth power transitions, making it more comfortable for daily driving.

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

6. Does it require a fuel return line?
No. It features a single fuel inlet and is designed to work with standard non-return fuel systems, simplifying installation.

7. Is it suitable for racing or heavy-duty performance builds?
It is best suited for daily driving, commuting, or mild performance builds. For high-RPM racing or heavily modified engines with extreme power demands, a carburetor with higher CFM or mechanical secondaries may be more appropriate. like: EVIL ENERGY 750 CFM Classic 4-Barrel Carburetor Dual Fuel Inlet

⚠️ APPLICATION RESTRICTIONS:

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

Brand Summary

Return Reasons

1. Quality Issues: Provide photos/videos; we cover return shipping.
2. Wrong Item Ordered: Buyer covers return shipping; email within 30 days.
3. Change of Mind: Buyer covers return shipping; email within 30 days.
4. Shipping Damage: Inspect packages; do not sign for damaged items.
5. Incorrect Item Shipped: Contact within 7 days.

Price Protection Policy

Effective from August 25, 2024. Price drops within 7 days of purchase can be claimed.

Disclaimer

EVIL ENERGY reserves the right to interpret, modify, or terminate this policy in accordance with applicable laws and regulations.

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