SKU: 95301564173

950CFM Ultra XP Carburetor - 0-80805HBX

Sale price$652.48 Regular price$724.98
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

950CFM Ultra XP Carburetor - 0-80805HBXOverview: Xtreme Performance Holley Ultra XP carburetors! Ultra XP carbs are up to 38% lighter than our traditional race carbs, have fuel capacity that is 20% greater and 30 other new features! They're available in our all new Hard Core Gray hard coat anodized finish with Black billet for improved corrosion protection. They're also available in natural tumble polished aluminum with your choice of Black or Red metering blocks and base plate. The

Overview:

Xtreme Performance - Holley Ultra XP™ carburetors! Ultra XP carbs are up to 38% lighter than our traditional race carbs, have fuel capacity that is 20% greater and 30 other new features! They're available in our all-new Hard Core Gray™ hard coat anodized finish with Black™ billet for improved corrosion protection. They're also available in natural tumble-polished aluminum with your choice of Black™ or Red™ metering blocks and base plate. The Aluminum Ultra XP comes in 600, 650, 750, 850, and True 950-CFM. Holley Ultra XP carburetors offer new features such as an integrated idle bypass valve that allows for idle adjustments while maintaining the correct throttle plate to transfer slot relationship, high capacity fuel bowls which feature 20% more fuel capacity to eliminate starvation, integrated fuel shelf to minimize fuel aeration and internal baffling to control fuel slosh. Other features include all aluminum construction, fully tunable billet metering blocks, billet base plate, adjustable secondary linkage and knurled (hand adjustable) curb idle screws. Holley Ultra XP carburetors are the ultimate in square bore race carburetors!
 

Features:

  • Aluminum Construction (saves 4.5 lbs - 38% weight savings)
  • Hard Core Gray with black anodized billet aluminum metering block and booster inserts
  • Designed for use on Drag race, circle track, or any high horsepower engines
  • Contoured venturri inlet offers balanced airflow for increased horsepower
  • Air bleeds moved outward to allow a smoother transition of airflow from the top of the carburetor into the venturii
  • Metering blocks feature improved durability, true gasket sealing and fully adjustable (emulsion bleeds, power valve channel restrictors & idle feed restrictors)
  • Integrated idle bypass valve eliminates the need for holes in throttle plates and allows for proper adjustment of idle while maintaining correct throttle plate to transfer slot relationship. Helps maintain good idle control when using radical camshafts.
  • Dual 30cc accelerator pumps provide the perfect amount of fuel from idle to full throttle
  • Fuel bowls provide 20% more fuel capacity while controlling slosh with internal baffling
  • Clear sight windows on both sides of bowls for easy and safe fuel level adjustments
  • Built in drain plug in front center of bowl provides easy access to empty contents of bowl
  • 8AN (o-ringed) inlet threads offer a large variety of plumbing options and can be plumbed from either side
  • 4 corner idle allows you to precisely control your idle system
  • Mechanical Secondaries for perfect off the line launches
  • Elongated (dual pattern) mounting holes allow fitment on intakes with square flange (Holley 4150™ style) or large flange (Holley Dominator® style)
  • Knurled (hand adjustable) primary and secondary curb idle screws allow for easy idle adjustment without the use of tools
  • Primary throttle shaft capped to prevent entry of debris & contaminates
  • Throttle shaft is slabbed and undercut for improved airflow
  • Factory machined accessory mounting hole for easy addition of adjustable primary throttle stop. New secondary pump cam lever designed to provide positive throttle stop on secondary side
  • Stainless steel adjustable secondary link. Provides choice of 1:1 or progressivesecondary throttle actuation for ultimate control of secondary opening rate
  • Baseplate designed with a boss that can be consumer machined for vacuum source
  • Includes notched float and jet extensions
  • 100% wet-flow tested by Holley technicians to assure it arrives ready to run!

 

Application:

Year Make Model Submodel Engine Size
Universal

 

Specs:

Barrels 4
Billet Color Hard Core Gray with Black
Booster Down Leg
Brand Holley
Carburetor Use Professional Race
CFM 950
Choke None
Circuit 2
Condition New
Emission Code 3
Finish Hard Core Gray
Fuel Gasoline
Fuel Inlet Dual
Marine Use No
Material Aluminum
Model 4150
Primary Main Jet 92
Primary Power Valve 4.5
Primary Pump Nozzle Size 32
Product Type Ultra XP Carburetor
Secondaries Mechanical
Secondary Main Jet 92
Secondary Power Valve 4.5
Secondary Pump Nozzle Size 32
Supercharged Application No
Throttle Bore 1.750 inch
Venturii Size 1.600 inch
Warning California Proposition 65
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 95301564173

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Eileen M. Vazquez
Houston, US
★★★★★ 1
Not a happy customer
Color: Brown, Size: 14.9"L x 0.6"W
If you are looking for nice size cutting boards, then these are not for you! They are very small and I didnt like the etching on the cutting boards, they will get filled with things you are cutting. What I least didn't liked don't know if its Amazon fault or the vendor? But the item came in the original box the boards were in, the the top part of the box was open. Everything was in the box but the label was on the box. When I returned it to the UPS store they wanted to charge me$10.19 for a box even though it was shipped without a box finally convinced them to put in a large envelope and they still charge me $2.75. Not happy at all with this vendor or maybe Amazon?
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Reviewed in the United States on April 28, 2026
A
Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 5
Great set
Color: Brown, Size: 14.9"L x 0.6"W
I love this set. I can’t wait to have a party and try it out as a stand. The small cutting board is a little small but it is good for cutting a piece of fruit or small veggies.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
W
Verified Purchase
William J. Rockwood
Natrona Heights, US
★★★★★ 4
Good option when replacing plastic cutting boards
If you're looking to replace plastic cutting boards, this is a nice option. The backs of the cutting boards are shaped to double as serving trays, a nice feature. These have been under heavy use, and are wearing well. I only gave 4 stars because the slots in the rack these stand in was too tight a fit, which I corrected with a little sanding in the slots.
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Reviewed in the United States on January 22, 2026
B
Verified Purchase
Beatrice Holsombach
Dallas, US
★★★★★ 5
Great size options and value
Color: Carbonized Bamboo(Brown)
These are perfect weight and sizes ! Easy to clean and esthetically pleasing ! Love that they have the holder for organization! Very well made and sturdy and a great value!
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Reviewed in the United States on March 24, 2026
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Verified Purchase
Randy J.
Phoenix, US
★★★★★ 5
Very nice.
Color: Carbonized Bamboo(Brown)
Look great,we will see how long they last.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026

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