EVIL ENERGY 600 CFM Street 4-barrel Carburetor Vacuum-Operated Secondary Throttle

Upgrade your engine’s street performance with the EVIL ENERGY 650 CFM Carburetor, a street-tuned 650 Carburetor designed to deliver smooth drivability, strong acceleration, and dependable fuel control. Built as a high-value alternative to the Holley 650 carb (0-1850S), the EVIL ENERGY 650 Carburetor matches premium performance without the premium price.

This 650 CFM Carburetor features a cable-actuated manual choke for controlled cold starts and vacuum-operated secondaries that automatically adjust to engine demand—ideal for daily driving, weekend cruising, and mild performance upgrades. Its optimized venturi sizing and fuel metering ensure a clean transition from idle to wide-open throttle, giving the EVIL ENERGY Carburetor smooth throttle response and consistent power across the RPM range.

Pre-calibrated with #66 primary jets, a 30cc accelerator pump, and a 6.5Hg power valve with blow-out protection, this EVIL ENERGY 650 Carburetor provides reliable acceleration and stable idle quality. Constructed from lightweight, corrosion-resistant aluminum with a polished finish, it improves heat dissipation and maintains a clean appearance under the hood. Each unit is 100% wet-flow tested to ensure it's ready to run right out of the box.

Installation is simple with a direct bolt-on square-bore flange (5-3/16-inch x 5-5/8-inch), and it's compatible with GM, Ford, and Chrysler automatic transmission linkages (some applications may require adapter hardware). The result is a 650 CFM Carb that delivers strong street torque, clean cruising efficiency, and dependable everyday performance—at a more affordable price than competing brands.

Who It’s For & Where It Performs Best

The EVIL ENERGY 650 CFM Carburetor is ideal for drivers who want smooth street drivability with reliable performance power. This 650 Carburetor suits muscle cars, classic V8s, hot rods, and mild performance builds where crisp throttle response and stable cruising are important. Whether you're daily commuting, weekend cruising, or enjoying spirited highway acceleration, the EVIL ENERGY 650 Carburetor delivers clean idle, smooth mid-range power, and confident wide-open-throttle pull.

Perfect for:

• Classic V8 restorations upgrading from worn factory carbs
• Street performance builds needing 650 cfm carb airflow balance
• Hot rod owners who want responsive acceleration without tuning complexity
• Drivers comparing to the Holley 650 carb (0-1850S) but wanting better value
• Builders who want a bolt-on 650 cfm carb mechanical secondary setup that’s reliable and easy to maintain

The EVIL ENERGY Carburetor gives you strong street power, predictable fuel delivery, and everyday usability—making it a smart upgrade for real-world driving, not just dyno numbers.

Why Choose EVIL ENERGY 600 Carburetor?

• Premium Performance Without the Brand Markup
  The EVIL ENERGY 650 Carburetor delivers the same performance and reliability found in premium models like the Holley 650 CFM Carburetor (0-1850S) and Edelbrock street carbs—but at a more affordable price. You get real value, not just a brand name.
• Street-Optimized Factory Calibration
  This 650 CFM Carburetor is pre-tuned for stock to mildly modified V8 engines, offering smooth idle, clean throttle transitions, and responsive acceleration for everyday driving, weekend cruising, and light performance use.
• Wide Vehicle Compatibility
  Designed as a 650 4 barrel carburetor with a square-bore flange, it fits most GM, Ford, and Chrysler intake manifolds. It also integrates with automatic transmission kickdown linkages, including 700R4 and 200R4 setups—making installation straightforward.
• Durable, Low-Maintenance Build
  The EVIL ENERGY 650 CFM Carb is constructed from corrosion-resistant aluminum with precision-machined fuel circuits to ensure stable long-term performance. Once installed and tuned, this EVIL ENERGY Carburetor is built to stay consistent with minimal maintenance.

⚠️ APPLICATION RESTRICTIONS

Not suitable for marine applications; California bans sales on pollution-regulated vehicles.

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

FAQ – EVIL ENERGY 600 CFM Carburetor

Q1: What vehicles is the EVIL ENERGY 650 Carburetor compatible with?
A: This EVIL ENERGY 650 Carburetor fits most square-bore intake manifolds (5 3/16-inch x 5 5/8-inch) and works with GM, Ford, and Chrysler V8 engines. It also supports 700R4 and 200R4 kickdown linkage, making it a direct replacement for Holley 650 CFM Carburetor (0-1850S), Edelbrock, Carter AFB, and Autolite carbs.

Q2: Does this 650 CFM Carburetor require tuning out of the box?
A: No. Every EVIL ENERGY 650 CFM Carb is 100% wet-flow tested and factory-calibrated for street performance. Most engines run well after bolt-on installation. Only small idle or mixture adjustments may be needed on highly modified engines.

Q3: What is power valve blow-out protection?
A: The EVIL ENERGY Carburetor includes built-in power valve blow-out protection, preventing damage from engine backfires and ensuring long-term reliability.

Q4: Is installation difficult?
A: Installation is straightforward. This 650 4 barrel carburetor is a direct bolt-on to square-bore manifolds. Just bolt it down, connect the fuel line, and hook up the choke cable (if manual). No special tools or major modifications required.

Q5: Can this 650 CFM Carb be used on high-performance engines?
A: Yes. The EVIL ENERGY 650 Carburetor is ideal for 250–400 HP street performance builds, offering stable high-speed fuel delivery, smooth idle, and clean throttle transitions.

Q6: What maintenance does a mechanical carburetor need?
A: Periodically clean the venturis, jets, and fuel inlet and ensure a clean fuel supply. The corrosion-resistant aluminum body minimizes long-term maintenance.

Q7: How does this compare to premium brands like Holley 650 (0-1850S)?
A: The EVIL ENERGY 650 CFM Carburetor delivers the same core performance and features—vacuum secondaries, power valve protection, wet-flow testing—but at a more affordable price, without brand markup.

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.

If you need further information or assistance, feel free to ask!