750 CFM Double Pumper Carburetor

Product Code: 0-4779S

£682.46 EX VAT

£818.95 INC VAT

Product Overview:

All of our Holley orders are done once a week from USA, if you need it sooner please contact us prior to ordering. Complete delivery may take up to 14 days.

0-4779S Manual Choke Mechanical Secondaries-4150

More Information

Product Details Specification Delivery & Returns

Product Details

Holley Double Pumper carburetors are a perfect performance upgrade for hot street cars and race vehicles. Double Pumper carburetors are an American icon when it comes to performance carburetors. From their roots as the premier carburetor on many factory muscle cars to powering thousands of vehicles across the finish line, the Double Pumper is a great choice whether you are burning up the street or the quarter mile.

The Double Pumper is designed for use on lightweight vehicles with a manual transmission or an automatic transmission with a high stall and low rear end gears. The Double Pumper is available in a gold dichromate or tumble polished shiny finish and features dual accelerator pumps for additional fuel under initial acceleration; mechanical secondaries for great performance; dual feed fuel inlets for constant high volume fuel delivery and a manual choke for easy control of engine warm up.

Don't trust your performance to just anyone, Holley is the only modular carburetor company that has been in business for over 100 years and has powered every NASCAR champion since the 60's.

Features:

Shiny finish for good looks
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 your 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% wet-flow tested by Holley technicians to assure it arrives ready to run!

Specification

Barrels	4
Booster	Down Leg
Brand	Holley
CFM	750
Choke	Manual
Condition	New
Emission Code	3
Finish	Shiny
Fuel	Gasoline
Fuel Inlet	Dual
Marine Use	No
Material	Aluminum
Model	4150
Primary Main Jet	70
Primary Power Valve	6.5
Primary Pump Nozzle Size	28
Product Type	4150 Model Carburetor
Secondaries	Mechanical
Secondary Main Jet	80
Secondary Pump Nozzle Size	31
Supercharged Application	No
Throttle Bore	1.688 inch
Vacuum Ports	1 timed (spark) port, 1 full, and 1 PCV port
Warranty	Limited 90 Day
Part Number	0-4779S

Delivery & Returns

Billy's Speed Shop ensures the highest standard of service. Therefore we use only most reliable delivery services in the UK what allows us to provide you quick and efficient delivery of your products.

We aim to stock all of the products in our warehouse. However the situation may occur that we currently do not have particular item in stock then we will order it directly from UK supplier. If delivery time will exceed 3 days we will inform you via email or telephone.

Our Delivery Options are as follows:

Parcels up to 2kg and up to £50 of value are being sent via Royal Mail - 1st or 2nd class.
Parcels up to 2kg and £50 - £100 of value are being sent via Royal Mail - 1st or 2nd class - Tracked.
Parcels over 2kg and over £100 of value are being sent via Courier - DPD Tracked.
Bulk or Heavy purchases that weigh over 20 kg are sent on a pallet - Pallex.