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Holley 0-80903RD 1050 CFM Gen 3 Ultra Dominator Carburetor

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Holley 0-80903RD 1050 CFM Gen 3 Ultra Dominator Carburetor
Holley

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#425080903RD

Holley 0-80903RD 1050 CFM Gen 3 Ultra Dominator Carburetor

$1,528.95

/each

Factory Shipped

$1,699.95

Save $171.00


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Product Summary

Universal Fit, 4-Barrel Carburetor Barrels, Shiny, Red

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    Key Specs

    Carburetor Barrels4-Barrel
    Fuel TypeGasoline
    Choke TypeNo Choke
    CFM Range1,000-1,099 CFM
    CFM1050 CFM
    See more specs

    Need To Know

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    855.313.9176
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    Holley 0-80903RD Details

    The Gen 3 Ultra Dominator features a brand new main-body, brand new state-of-the-art calibrations, high volume fuel bowls and sizes up to 1475 CFM! The patent pending GEN 3 main-body is 5/16 taller than the previous generation! This new height allowed for larger radius air entries which were optimized using Computational Fluid Dynamics (CFD) software to deliver smoother flow into new fully machined, big bore venturii. The main-body also features an integrated idle bypass valve that allows for idle adjustments while maintaining the correct throttle plate to transfer slot relationship as well as an extended air cleaner flange for easy air scoop attachment when using the available air scoop adapter. Each calibration has been dyno and track tested to deliver proven performance!

    • All aluminum construction saves 3.8lbs. over original models (28% weight savings)
    • Shiny with red anodized billet aluminum metering block and booster inserts
    • Designed for use on Drag race, Pro Street, or any high horsepower engines
    • Calibrations optimized for today's larger race engines and new fuels
    • Fully machined from venturii throat to throttle bore for predictable & repeatable performance
    • Integrated idle bypass valve allows for adjustment of idle while maintaining correct throttle plate to transfer slot relationship
    • 12 hole billet booster inserts for superior atomization and crisp throttle response
    • Dual 50cc accelerator pumps provide the perfect amount of fuel from idle to full throttle
    • Fuel bowls provide 20% more fuel capacity while controlling slosh with internal baffling
    • Clear sight windows on both sides of bowls for easy and safe fuel level adjustments
    • Built in drain plug in front center of bowl provides easy access to empty contents of bowl
    • -8 (o-ringed) inlet threads offer a large variety of plumbing options and can be plumbed from either side
    • Factory ready TPS mounting points for use with data acquisition systems (Holley TPS P/N 534-214 available)
    • Knurled (hand adjustable) primary and secondary curb idle screws allow for easy idle adjustment without the use of tools
    • Contoured hex head squirter screws for streamlined airflow
    • Fully adjustable stainless steel external linkage can be adjusted for 1:1 progressive, or soft progressive throttle activation. No linkage parts under the carburetor
    • 100% wet-flow tested by Holley technicians to assure it arrives ready to run!

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    Holley October Promo 10% Off Select Parts Sale

    Holley October Promo 10% Off Select Parts SaleHolleyOctoberPromo10%OffSelectPartsSale

    Holley's October Promo 10% Off Select Parts Sale, running from September 28, 2026, through November 1, 2026. For a limited time, customers can save up to 10% off on select Holley parts, making it the perfect opportunity to upgrade your ride with premium Holley branded parts including Holley, Brawler, Quick Fuel, Leg Wheels, Rev Wheels, Rocket Racing, Flowtech, Edge, Racequip, Apr and Dinan. Purchases must be made between September 28, 2026, through November 1, 2026. This limited-time offer applies to qualifying Holley branded parts purchased during the promotional period. Following the promotion, these parts will revert back to standard pricing.

    CARB Warning

    For race/ off road use only

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.
    CA Prop 65
    CARB warning

    Holley 0-80903RD Specifications

    KEY SPECS
    MFG. Part #0-80903RD
    BrandHolley
    Carburetor Barrels4-Barrel
    Fuel TypeGasoline
    Choke TypeNo Choke
    CFM Range1,000-1,099 CFM
    CFM1050 CFM
    Carburetor Flange Type4-Barrel Dominator
    FinishShiny
    Material TypeAluminum
    ColorRed
    Secondary TypeMechanical
    Fuel Inlet TypeDual
    Gasket(s) IncludedYes
    New or RemanufacturedNew
    Throttle Linkage TypeUniversal
    Supercharged ApplicationNo
    GENERAL
    Model4500UHP
    BoosterAnnular Billet Insert
    Number of Circuits3
    Emission Code3
    Throttle Bore2.000 inch
    Venturi Diameter1.690 Inch
    Bolt Hole Pattern5.375" x 5.375"
    GTIN Code090127684535
    Sold in QuantityEach

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