Skip to product information
1 of 9

Holley 4500 1050 CFM 2 Circuit-Dominator SP

Holley 4500 1050 CFM 2 Circuit-Dominator SP

Regular price $1,559.94
Regular price Sale price $1,559.94
Sale Sold out

Out of stock

Quantity

Need this part?

This item is currently unavailable. Ask us about availability or help finding a suitable replacement.

Ask about availability or fitment

Year, make, model and engine help us check fitment.

We'll reply to your inquiry by email. This is not an automatic restock alert.

Shipping & returns

This selection is unavailable. Ask us to confirm availability and timing.

Shipping details

In-stock orders are processed within 48 hours; transit time is additional.

International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.

Read the shipping policy

Returns

Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.

Read the full return policy
Return details & how to start

Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.

Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.

Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.

Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.

After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.

Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.

For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.

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
  • 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
 
Specs
Barrels 4
Billet Color Clear SP Dominator
Brand Holley
CFM 1050
Choke None
Circuit 2
Emission Code 3
Finish Shiny
Fuel Gasoline
Fuel Inlet Dual
High Speed Air Bleed 32
Idle Air Bleed Size 57
Material Aluminum
Model 4500
Needle and Seat Size 120;120
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 inch
Venturii Size 1.690 inch
Part Number 0-80688
View full details

Vehicle fitment