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Holley 0-80901RD 950 CFM Gen 3 Ultra Dominator Carburetor

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#425080901RD

Holley 0-80901RD 950 CFM Gen 3 Ultra Dominator Carburetor

Name: Holley 0-80901RD 950 CFM Gen 3 Ultra Dominator Carburetor
Brand: Holley
SKU: 425080901RD
Price: 1483.95 USD
Availability: InStock

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Product Summary

Universal Fit, 4-Barrel Carburetor Barrels, 950 CFM CFM

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Key Specs

Carburetor Barrels	4-Barrel
Fuel Type	Gasoline
Choke Type	No Choke
CFM Range	900-999 CFM
CFM	950 CFM

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Holley 0-80901RD Details

The original Dominator® took carburetion to another level in 1969 when it was developed for NASCAR® racing. It has been refined over the years and has received its biggest change ever. 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. The Gen 3 utilizes high capacity fuel bowls which feature 20% more fuel capacity to eliminate starvation, integrated fuel shelf to minimize fuel aeration and internal baffling to control fuel slosh. Other features include all aluminum construction, 12 hole billet booster inserts, fully tunable billet metering blocks, adjustable external linkage, throttle position sensor mounting points and knurled (hand adjustable) curb idle screwsEach calibration has been dyno and track tested to deliver proven performance!

Features:

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 And 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

Metering blocks feature improved durability, true gasket sealing and fully adjustable (emulsion bleeds, power valve channel restrictors And idle feed restrictors)

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

100% wet-flow tested by Holley technicians to assure it arrives ready to run!

Fully adjustable stainless steel external linkage can be adjusted for 1:1 progressive, or soft progressive throttle activation. No linkage parts under the carburetor

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Holley October Promo 10% Off Select Parts Sale

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.

Guides & Documents

Determining the Best Performance Carburetor For Your Application

Carburetors Installation Instructions (425080901RD)

Carburetors Technical Information (425080901RD)

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 0-80901RD Specifications

KEY SPECS
MFG. Part #	0-80901RD
Brand	Holley
Carburetor Barrels	4-Barrel
Fuel Type	Gasoline
Choke Type	No Choke
CFM Range	900-999 CFM
CFM	950 CFM
Carburetor Flange Type	4-Barrel Dominator
Finish	Polished
Material Type	Aluminum
Color	Red
Secondary Type	Mechanical
Fuel Inlet Type	Dual
Gasket(s) Included	Yes
New or Remanufactured	New
Throttle Linkage Type	Universal
Supercharged Application	No

GENERAL
Model	4500UHP
Booster	Annular Billet Insert w/ Skirt
Number of Circuits	2
Emission Code	3
Throttle Bore	2.000 inch
Venturi Diameter	1.690 Inch
Bolt Hole Pattern	5.375" x 5.375"
Carburetor Height	3.5
Primary Power Valve	5.5 Hg
Primary Jet Size	80
Secondary Jet Size	90
Primary Discharge Nozzle Size	0.035
Secondary Discharge Nozzle Size	0.035
Notes	2-Circuit metering, 1.690 in. venturii, 2.000 in. throttle bore. Billet aluminum red anodized metering blocks. -8AN O-ringed inlet threads. Come standard with -8AN o-ring to -6AN male adapter and -8AN plug. Can be plumbed from either side. Holley Ultra Dominator race carburetors are for race applications only and are not designed or suggested for street use. Ultra Dominator carburetors do not provide attachment points for street transmissions, vacuum outlets or stock throttle linkage and cables.
GTIN Code	090127684627
Sold in Quantity	Each

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