Holley 0-4777CE Classic 650 CFM Double Pumper 4150 Carburetor w/Electric Choke Features:

• Classic zinc finish for corrosion resistance and classic looks
• Optimized street/strip calibration that performs out-of-the-box
• Electric choke for precise cold start control
• Mechanical secondaries for optimum performance
• Dual accelerator pumps for additional fuel under initial acceleration
• Dual feed fuel inlets for constant high volume fuel delivery
• Intended for lightweight vehicles w/manual trans or automatics with high stall & low gearing
• 100 Percent wet-flow tested

FAQ

What is the benefit of a double pumper carb?

• Double pumper carbs offer immediate throttle response and increased fuel delivery.
• The Holley 0-4777CE, a 650 double pumper carb, provides enhanced performance for high-revving engines.

Will a 650 CFM carb work on a 350?

• Yes, a 650 CFM carb suits a 350 engine, ensuring efficient fuel delivery and optimal performance.
• The Holley 0-4777CE provides balanced fuel-air mixture, ideal for a 350 engine's power requirements.

How much HP will a 750 CFM carb support?

• Typically, a 750 CFM carb sustains around 400-500 HP on a high-performance engine.
• The Holley 750 double pumper, like the 0-4777CE, suits engines with moderate to high power demands.

What is the recommended fuel pressure for a Holley 650?

• Generally, a Holley 650 operates optimally within a range of 5-7 PSI fuel pressure.
• The 0-4777CE, a Holley 650 double pumper carburetor, thrives within this recommended pressure for efficient performance.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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