Holley 0-4779S Double Pumper 4150 Carburetor Features:

• Optimized street/strip calibration that works out-of-the-box
• Manual choke (Cable driven, hand operated) for precise cold start control
• Mechanical secondaries for awesome tire-turning performance
• 4-corner idle allows you to precisely control the idle system
• 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 by Holley technicians to ensure it arrives ready to run

FAQ

How much HP will a 750 CFM carb support?

• A 750 CFM carb typically sustains around 400-500 HP on a high-performance engine.
• The Holley 0-4779S, a 750 CFM carb, suits engines with moderate to high power needs.

How much fuel pressure does a 750 Holley need?

• Generally, a 750 Holley carb requires around 5-7 PSI fuel pressure.
• Ensuring optimal fuel delivery, the 0-4779S operates efficiently within this pressure range.

Are Holley or Edelbrock carbs better?

• Holley and Edelbrock offer quality carbs, but preferences vary based on engine setup and driving needs.
• Some prefer Holley's performance-oriented approach, while others appreciate Edelbrock's user-friendly design.

What is the difference between Holley 4150 and 4160?

• The Holley 4150 features a secondary metering plate, allowing adjustment of the secondary fuel mixture.
• In contrast, the 4160 utilizes a metering block design, offering simplicity and ease of tuning.

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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