Holley 750 Ultra Double Pumper with Red Billet

ULTRA Light
Crafted from aluminum, this carburetor offers a remarkable 43% reduction in weight.

ULTRA Shiny
Its tumble-polished finish ensures a lasting shine that stands out.

ULTRA Strong
Featuring billet metering blocks and base plates for exceptional durability.

ULTRA Cool
The striking red anodized billet aluminum metering blocks and base plate add a touch of flair.

ULTRA Easy
With a built-in sight window, adjusting the float is a breeze.

ULTRA Fast
Designed with high-performance fuel curves to meet your speed needs.

Holley Double Pumper® carburetors are an ideal choice for hot street cars and racing machines. These carburetors have become an American classic, powering countless vehicles from factory muscle cars to today's high-performance rides. Whether you're tearing up the streets or racing down the quarter mile, the Double Pumper is a go-to option.

The Ultra Double Pumper™ Carburetors are made entirely of aluminum, featuring metering blocks and a base plate crafted from 6061 T6 billet aluminum. This design results in a weight savings of around 5 lbs compared to similar zinc carburetors.

With an optimized fuel curve for peak performance, the new Ultra Double Pumper Carburetors come packed with features. These include anodized billet aluminum metering blocks and base plate, four-corner idle for precise control, dual accelerator pumps for extra fuel during initial acceleration, mechanical secondaries for impressive performance, and clear fuel level sight plugs for easy, mess-free adjustments. Plus, you’ll find a Ford automatic transmission kickdown for popular Ford setups and four vacuum ports for all your accessory needs. For the first time on a Double Pumper, we've included a factory preset electric choke for quick and easy cold starts.

The sleek, polished appearance, combined with the red metering blocks and throttle body, will definitely make your ride stand out, whether you're at a car show or on the track.

Important Downloads:

• Instructions for Part# 0-76750RD
• Carburetor Numerical Listing for Part #0-76750RD

Features:

• Stunning red anodized billet aluminum metering blocks and base plate for both aesthetics and effective gasket sealing.
• Optimized street/strip calibration that works right out of the box.
• Factory preset electric choke for hassle-free startups.
• Mechanical secondaries providing fantastic performance.
• Four-corner idle for precise idle system control.
• Built-in clear fuel level sight glass for simple fuel level adjustments without mess.
• Lightweight aluminum construction offering a 43% weight savings.
• Compatible with GM, Chrysler, and Ford A/T kickdown linkage (additional parts may be needed).
• Designed for lightweight vehicles with manual transmissions or automatics featuring high stall and low gearing.
• Each unit is 100% wet-flow tested by Holley technicians to ensure it's ready to run!

Specifications:

• Barrels: 4
• Billet Color: Red
• Booster: Down Leg
• CFM: 750
• Choke: Electric
• Emission Code: 3
• Finish: Shiny
• Fuel: Gasoline
• Fuel Inlet: Dual
• Material: Aluminum
• Model: 4150
• Primary Main Jet: 72
• Primary Power Valve: 6.5
• Primary Pump Nozzle Size: 31
• Product Type: 4150 Model Carburetor
• Secondaries: Mechanical
• Secondary Main Jet: 80
• Secondary Pump Nozzle Size: 28
• Supercharged Application: No
• Throttle Bore: 1.688 inch
• Vacuum Ports: 1 timed (spark) port, 2 full, and 1 PCV port
• Warranty: Limited 90 Day

Notes:

• This carburetor features a square bore flange bolt pattern and can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with a 5 3/16" x 5 5/8" bolt pattern. If you're using a spreadbore style intake manifold, an adapter will be necessary for installation, such as the Mr. Gasket #1932.