750CFM Ultra XP Carburetor - 0-80803HBX
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 8 - Jul 13

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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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kim labarre
Cuba, US
★★★★★ 5
Great exfoliation
Color: yellow
This does a beautiful job exfoliating, no more flakey legs. And it's gentle enough for the rest of my body. I'm on my 2nd bar of soap in my 1st bag and it's holding up well. I give it a good rinse after each use and hang it on a hook in my shower to dry. Well worth the money.
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Reviewed in the United States on April 19, 2026
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Glow
Whiting, US
★★★★★ 5
Extremely satisfied with my purchase.
Color: yellow
The ‘bag’ size is big enough to fit a LARGE (up to a 10 ounce bar of homemade/ handcut soap) bar or many tiny pieces. I am tired of using body wash (full of harmful chemicals) & a ‘pouf’ that may not be getting fully clean after throwing it in the washing machine periodically. The fabric quality is organic, natural & PREMIUM! It has little loops on the fabric which are great for lightly exfoliating & cleaning the skin, has a bead to keep opening closed and the string is long enough to fit around your wrist to hold it easily while bathing or showering. As far as effectiveness, it gets very bubbly if you get the fabric wet 1st & then make some traction (rub the wet bag back & forth onto the wet soap bar) between soap and the bag. For washing, use ‘wash bags’ (which are sold on Amazon & other retailers in many sizes) to keep them from being torn from buttons, zippers, etc on other items in the wash. With 8 in a pack, you should always have a clean one to use, while washing a previously used one. Rinse it out & Hang it after use to fully dry.
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Reviewed in the United States on October 23, 2025
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RH
San Leandro, US
★★★★★ 5
I love these
These bags are the best for bar soap. They scrub and rinse out nice.
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Reviewed in the United States on April 14, 2026
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DaniFinchh
Lowell, US
★★★★★ 5
Great product
Color: yellow
These are great! Super lightweight, easy to wash, and not painful to scrub your skin with. The price is right and the product is durable, fits all kinds of shaped and sized soaps, lathers well, and does not carry an abnormal smell.
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Reviewed in the United States on November 19, 2025
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Mama Maureen
Battle Creek, US
★★★★★ 5
Highly recommend!
Color: yellow
Very pleased with this product. The bags are soft but still exfoliate well. They hold lather after wetting the outside, but then allow the soap to dry completely when hung by the drawstring. I will buy them again when I need them.
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Reviewed in the United States on May 17, 2026

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