Holley 0-80689 - Gen 3 Ultra Dominator® SP Carburetor

Holley 0-80689 - Gen 3 Ultra Dominator® SP Carburetor

Carburetor - Dominator SP - Model 4500 - 4-Barrel - 1050 CFM - Dominator Flange - No Choke - Mechanical Secondary - Dual Inlet - Aluminum - Tumble Polished - Each

Gen 3 Ultra Dominator® SP Carburetor; 4bbl; 1050cfm; 3 Circuit Metering; Model 4500; 1x4 Carb Set-Up; Dual 50cc Accelerator Pump; No Choke; Gas; Dual Fuel Inlet; Shiny Finish;

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 in. 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!

• 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