Holley 4500 1050 CFM 3 Circuit - Sportsman Dominator

Holley engineers have taken their cutting-edge Gen 3 Ultra carburetors and crafted a more budget-friendly option that’s just right for both street and strip applications, as well as for serious bracket or sportsman drag racers. The latest Holley SP Dominator carburetors showcase a patent-pending Gen 3 main body that stands 5/16" taller than its predecessor! This extra height allows for larger radius air entries, resulting in smoother airflow that translates to better throttle response and consistency.

To make things even easier, an extended air cleaner flange is included, making it a breeze to attach an air scoop when you opt for the available air scoop adapter. You’ll find all-aluminum construction, tunable billet metering blocks, and throttle position sensor mounting points, along with knurled (hand adjustable) curb idle screws for your convenience. Each calibration has been rigorously dyno and track tested to ensure you get reliable performance every time!

• Instructions for Part# 0-80689

• All-aluminum construction reduces weight by 3.8 lbs compared to original models (28% lighter).
• Eye-catching shiny finish with a billet aluminum metering block and black hardware.
• Designed for drag racing, pro street, or any high-horsepower engines.
• Calibrations tailored for modern race engines and new fuel types.
• Fully machined from venturi throat to throttle bore for consistent performance.
• Annular boosters provide excellent signal and throttle response.
• Screw-in air bleeds allow for precise tuning capabilities.
• Durable metering blocks with true gasket sealing and adjustability (includes power valve channel restrictors, intermediate restrictors, and idle feed restrictors).
• Dual 50cc accelerator pumps ensure the right amount of fuel from idle to full throttle.
• Four-corner idle lets you finely tune your idle system.
• Clear sight windows on the fuel inlet side of bowls for easy and safe fuel level adjustments.
• Notched float and jet extension come pre-installed for your convenience.
• 5/8-18 inlet threads provide 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 simple adjustments without tools.
• Contoured hex head squirter screws enhance airflow.
• Progressive secondary link installed for perfect launches off the line. Comes with a 1:1 wire link in the kit.
• 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: 1050
• Choke: None
• Circuit: 3
• Emission Code: 4
• Finish: Shiny
• Fuel: Gasoline
• Fuel Inlet: Dual
• High Speed Air Bleed: 40
• Idle Air Bleed Size: 53
• Intermediate Air Bleed: 63
• Material: Aluminum
• Model: 4500
• Primary Main Jet: 84
• Primary Power Valve: 5.5
• Primary Pump Nozzle Size: 35
• Product Type: Carburetor
• Secondaries: Mechanical
• Secondary Main Jet: 94
• Secondary Pump Nozzle Size: 35
• Supercharged Application: No
• Throttle Bore: 2.000 inches
• Venturi Size: 1.690 inches
• Warranty: Limited 90 Day