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1050 CFM Holley Dominator SP Carburetor-Factory Refurbished

4500 1050 CFM 2 Circuit-Dominator SP-4500

PART# FR-80688

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We have limited stock on this part and on rare occasion receive more orders that can be filled.  If the part is oversold, backorders will be canceled and all payments will be refunded.

Overview

This is an official Holley Performance Factory Refurbished Carburetor. Factory Refurbished carbs are NOT old worn-out carbs that have been rebuilt. They are carbs that were returned under warranty. When these carbs are returned, we check them out and most of the time there is nothing wrong with them. Generally, they were simply adjusted out of working range by the installer. Since these carbs may show signs of a previous installation, our policy is not to sell them as new. Rather than scrapping them, we are making them directly available to the public. Not only does this help us control the costs of our new carbs, it allows you to get a great deal on a like-new carburetor! Factory Refurbished carbs have undergone a thorough inspection. Any damaged parts that would effect performance have been replaced and the carbs are solvent cleaned before being wet-flow-tested on Holley's state-of-the-art flow benches allowing them to be recalibrated to new carb specs. Factory Refurbished carbs may have scratches, blemishes, and other visual flaws from previous installation. Factory Refurbished Carburetors have limited availability. Holley engineers have taken the state-of-the-art Gen 3 Ultra carburetors and created a budget friendly version that is perfect for street/strip applications as well as all out bracket or sportsman drag cars. The new Holley SP Dominator carburetors feature the patent pending Gen 3 main–body which is 5/16" taller than the previous generation! This new height allowed for larger radius air entries to deliver smoother flow that equates to improved throttle response and consistency. An extended air cleaner flange is incorporated for easy air scoop attachment when using the available air scoop adapter. Other features include all aluminum construction, tunable billet metering blocks, throttle position sensor mounting points and knurled (hand adjustable) curb idle screws. Each 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 billet aluminum metering block and black hardware
  • Designed for use on Drag race, Pro Street, or any high horsepower engines
  • Calibrations optimized for today's race engines and new fuels
  • Fully machined from venturi throat to throttle bore for predictable & repeatable performance
  • Annular boosters deliver excellent signal and throttle response
  • Screw in air bleeds offer precise tuning capabilities
  • Metering blocks feature improved durability, true gasket sealing and adjustability ( power valve channel restrictors, intermediate restrictors & idle feed restrictors)
  • Dual 50cc accelerator pumps provide the perfect amount of fuel from idle to full throttle
  • 4 corner idle allows you to precisely control your idle system
  • Clear sight windows on fuel inlet side of bowls for easy and safe fuel level adjustments
  • Notched float and jet extension are factory installed
  • 5/8-18 inlet threads offer a large variety of plumbing options (uses standard 4500 fuel inlet spacing)
  • 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
  • Progressive secondary link installed for perfect off the line launches. No linkage parts under the carburetor (1:1 wire link included in kit)
  • 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
  • Compatible with the Gen 3 Dominator 4-hole billet spacer P/N 17-86

Specs

Barrels4
Billet ColorClear SP Dominator
BrandHolley
CFM1050
ChokeNone
Circuit2
Emission Code4
FinishShiny
FuelGasoline
Fuel InletDual
High Speed Air Bleed32
Idle Air Bleed Size57
MaterialAluminum
Model4500
Needle and Seat Size120;120
Primary Main Jet84
Primary Power Valve5.5
Primary Pump Nozzle Size35
Product TypeFactory Refurbished Carburetor
SecondariesMechanical
Secondary Main Jet94
Secondary Pump Nozzle Size35
Supercharged ApplicationNo
Throttle Bore2.000 inch
Venturii Size1.690 inch
WarrantyLimited 90 Day
Part NumberFR-80688

Service Parts

Emissions

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Tech Resources

We have limited stock on this part and on rare occasion receive more orders that can be filled.  If the part is oversold, backorders will be canceled and all payments will be refunded.

Warranty Information

Limited 90 Day: See Details
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      *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

      Some parts are not legal for use in California or other states with similar regulations.

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