Holley's talented engineers have taken the cutting-edge Gen 3 Ultra carburetors and crafted a wallet-friendly version that’s ideal for both street/strip setups and serious bracket or sportsman drag racing. Introducing the new Holley SP Dominator carburetors, which feature a patent-pending Gen 3 main body that stands 5/16" taller than the previous generation! This extra height allows for larger radius air entries, providing smoother airflow that translates to better throttle response and consistency.

The design includes an extended air cleaner flange, making it easy to attach an air scoop when using the available air scoop adapter. Other standout features include a durable all-aluminum construction, tunable billet metering blocks, throttle position sensor mounting points, and knurled (hand adjustable) curb idle screws. Each calibration has been rigorously dyno and track tested to ensure you get reliable performance!

• Instructions for Part# 0-80690

• All-aluminum construction saves 3.8 lbs. compared to original models (28% weight savings)
• Polished finish with a billet aluminum metering block and sleek black hardware
• Perfectly suited for drag racing, pro street, or any high horsepower engine
• Calibrations tailored for today’s race engines and modern fuels
• Fully machined from venturi throat to throttle bore for consistent and repeatable performance
• Annular boosters provide excellent signal and responsiveness
• Screw-in air bleeds allow for precise tuning
• Durable metering blocks with true gasket sealing and adjustable features (power valve channel restrictors, intermediate restrictors & idle feed restrictors)
• Dual 50cc accelerator pumps deliver just the right amount of fuel from idle to full throttle
• Four-corner idle system for precise idle control
• Clear sight windows on the fuel inlet side of bowls for safe and easy fuel level adjustments
• Notched float and jet extension come pre-installed
• 5/8-18 inlet threads offer a wide range of plumbing options (compatible with standard 4500 fuel inlet spacing)
• Factory-ready TPS mounting points for data acquisition systems (Holley TPS P/N 534-214 available)
• Knurled (hand adjustable) primary and secondary curb idle screws for effortless idle adjustments without tools
• Contoured hex head squirter screws streamline airflow
• Progressive secondary link included for smooth off-the-line launches (1:1 wire link also included)
• 100% wet-flow tested by Holley technicians to ensure it’s ready to run right out of the box!
• Compatible with the Gen 3 Dominator 4-hole billet spacer P/N 17-86

• Barrels: 4
• Billet Color: Clear SP Dominator
• CFM: 1150
• Choke: None
• Circuit: 3
• Emission Code: 4
• Finish: Shiny
• Fuel: Gasoline
• Fuel Inlet: Dual
• High Speed Air Bleed: 36
• Idle Air Bleed Size: 47
• Intermediate Air Bleed: 59
• Material: Aluminum
• Model: 4500
• Primary Main Jet: 92
• Primary Power Valve: 5.5
• Primary Pump Nozzle Size: 37
• Product Type: Carburetor
• Secondaries: Mechanical
• Secondary Main Jet: 102
• Secondary Pump Nozzle Size: 37
• Supercharged Application: No
• Throttle Bore: 2.000 inch
• Venturi Size: 1.690 inch
• Warranty: Limited 90 Day