SKU: 33821906154

750CFM Ultra XP Carburetor - 0-80803HBX

Sale price$607.48 Regular price$674.98
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

750CFM Ultra XP Carburetor - 0-80803HBXOverview: 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
  • 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 750
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 76
Primary Power Valve 6.5
Primary Pump Nozzle Size 32
Product Type Ultra XP Carburetor
Secondaries Mechanical
Secondary Main Jet 76
Secondary Pump Nozzle Size 32
Supercharged Application No
Throttle Bore 1.688 inch
Venturii Size 1.376 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: 33821906154

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4.5 ★★★★★
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Product Reviews
G
Gin G
San Leandro, US
★★★★★ 4
He likes it!
Color: Hammer, Size: Large, Color: Hammer, Size: Large
Shipping was quick, the packaging and product came undamaged. Cute. This dog toy is super soft. The squeaker is inside and seems more durable than most others. The little bit of rope at the bottom is not the typical material you find with other popular dog toys. My GR enjoys playing fetch with it and hasn't destroyed it. I feel this product is a decent value and would get it again. Other options to choose from too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2025
J
Verified Purchase
Jake
Port Orchard, US
★★★★★ 5
Cool dog toys with funny faces on
Color: Hammer, Size: Small
Bought bunch of these cute tool dog toys for my friends' dogs, they love them! Especially when you see them playing with these toys which has funny faces on. The quality is decent, and small size ones is good for small to medium sized dogs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
A
Allison F
Alexandria, US
★★★★★ 4
Durable and fun dog toy.
Color: Hammer, Size: Large
This plush hammer toy is incredibly soft and adorable, filled generously with plush material. My dog looks so goofy carrying it around in his mouth, and he has so much fun squeaking it! It's surprisingly durable; unlike many of his toys, which he typically chews through quickly, this one has stood up to his rough play so far. The little rope at the end is a thoughtful design element, allowing him to chew on it while maintaining durability. At 12 inches, the size is generous, making it perfect for medium and large dogs. Cleaning is easy; it can be spot cleaned with a microfiber cloth and warm, soapy water. For just $14.99, this toy is an excellent quality choice for the price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026
J
James J Clement
Pawtucket, US
★★★★★ 5
Phoebe approved! 3 months and still going!!
Color: Hammer, Size: Large, Color: Hammer, Size: Large
I have 2 dogs--a chocolate lab and a pittie mix. Normally, they shred their toys within minutes/hours if not days, but this one has lasted for over 3 months! It is well loved and starting to show some wear, but I am super impressed with how long this one has lasted. It has a couple holes in it but they haven't disemboweled it. The squeeker didn't last too long, but they never do.
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Reviewed in the United States on April 7, 2026
K
K. Mair
Louisville, US
★★★★★ 3
Good for modest chewers who don't destroy toys.
Color: Hammer, Size: Large
We have four dogs, one of whom is a super chewer. Unfortunately, this toy wasn't even durable enough to stand up to our mid-level chewer. She had the squeaker out of this in mere moments, and the rope was untied and in shreds. We had to basically remove the squeaker from her, then clip the rope from the toy so she didn't try to eat it. Now, don't get me wrong. She's still having a great time with this toy, even as she whips it around and tosses stuffing everywhere. This is definitely sized for medium to large dogs, but I would only recommend this to dogs who don't like to destroy their toys, but instead just like to squeak them and maybe play some light tug. For those dogs, this will be a great option. For super chewers, this will last only minutes and I would not recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026

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