Click to enlargeHolley 800 cfm Double Pumper Carburetor

Holley 0-4780C 800 cfm double pumper carburetor.

Mechanical secondaries, manual choke, center hung floats.

Power valve blow out protection for trouble free operation.

Dual metering blocks allow fine tuning of secondary fuel delivery.

Dual feed fuel inlets for constant high volume fuel delivery.

Dual accelerator pumps for additional fuel under initial acceleration.

100% wet flow tested.

Base gasket included.

Recommended for large small blocks or high rpm small blocks for racing or very hot street. Mild racing and hot street small displacement big blocks.

Universal performance calibration, may require changes of jetting or power valves or other tuning to match this carb to your particular engine setup.

The Holley 0-4780C features the classic Holley finish.

The 0-4780S features the vibratory polished finish that looks like chrome. Scroll down the page to find the 0-4780S.

Holley 0-4780C Holley 0-4780S 800 cfm carburetor double pumper HOLLEY-0-4780C$554.95

Click to enlargeHolley 0-4780S 800 cfm Double Pumper Carb
Holley 800 cfm double pumper carburetor with the vibratory polished finish that looks like chrome.

Click to enlargeChrome Fuel Line for Holley 0-4780C 0-4780S
We recommend this fuel line for use with the Holley 0-4780C and 0-4780S carburetor shown above.

3/8" hose barb inlet.

1/8" NPT port for attaching a fuel pressure gauge.

Chrome plated.



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