The Holley Dominator SP Carburetor takes the Gen 3 Ultra Dominator platform and offers it in a budget-friendly package suited to street/strip use as well as all-out bracket or sportsman drag cars. The Gen 3 main body is 5/16 in. taller than the previous generation, allowing larger-radius air entries for smoother flow, improved throttle response, and consistency, with each calibration dyno- and track-tested.
Specifications:
- CFM: 1050
- Model: 4500
- Secondaries: Mechanical
- Finish: Shiny
- Material: Aluminum
- Flange Type: Dominator/4500
- Fuel Type: Gasoline
- Fuel Inlet: Dual
- Carburetor Use: Professional Race
- Primary Main Jet: 84
- Secondary Main Jet: 94
- Primary Power Valve: 5.5
- Primary Pump Nozzle Size: 35
- High Speed Air Bleed: 40
- Idle Air Bleed Size: 53
- Intermediate Air Bleed: 63
- Throttle Bore: 2.000 in.
- Venturi Size: 1.690 in.
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 0-80689
It uses standard 4500 fuel inlet spacing with 5/8-18 inlet threads and is compatible with the Gen 3 Dominator 4-hole billet spacer (P/N 17-86). A 1:1 wire secondary link is included, with no linkage parts under the carburetor.
FAQ
What makes the Dominator SP different from earlier Dominator carburetors?
It uses the Gen 3 main body, which is 5/16 in. taller than the previous generation, giving larger-radius air entries for smoother flow and better throttle response.
What secondaries does the 0-80689 use?
Mechanical secondaries with a progressive secondary link for clean off-the-line launches.
What fuel inlet spacing does it use?
Standard 4500 fuel inlet spacing with 5/8-18 inlet threads.
Can it be used with data acquisition systems?
Yes, it has factory-ready TPS mounting points (Holley TPS P/N 534-214 available separately).

