Product Summary

Universal Fit, 4-Barrel Carburetor Barrels, Polished

    Key Specs

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

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    Holley 0-80903BK 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 black 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!

    Installation Instructions (PDF)

    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.

    Holley 0-80903BK Specifications

    MFG. Part #0-80903BK
    Carburetor Barrels4-Barrel
    Fuel TypeGasoline
    Choke TypeNo Choke
    CFM Range1,000-1,099 CFM
    CFM1050 CFM
    Carburetor Flange Type4-Barrel Dominator
    Material TypeAluminum
    Secondary TypeMechanical
    Speedway Motors Catalog Part #425-080903BK
    Bolt Hole Pattern5.375" x 5.375"
    GTIN Code090127684429
    Sold in QuantityEach