SKU: 57178923566

Holley 750cfm Ultra XP Aluminium Carburettor (HO0-80803HBX)

$1267.65 $1408.50
Save 10%
No.2 Bestseller on 2pierres.com >

Pay in installments of $352.12 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Holley 750cfm Ultra XP Aluminium Carburettor (HO0-80803HBX)HO0 80803HBX 750CFM HARD CORE GREY ULTRA Hardcore Grey with Black Billet Metering Blocks & Base Plates Part Number: HO0 80803HBX Xtreme Performance Holley Ultra XP carburetors! Ultra XP carbs are 38% lighter than our original HP, have fuel capacity that is 20% greater and 30 other new features! Theyre available in our all new Hard Core Gray hard coat anodized finish with Black billet for improved corrosion protection. Theyre also available in natural

HO0-80803HBX - 750CFM HARD CORE GREY ULTRA

Hardcore Grey with Black Billet Metering Blocks & Base Plates

Part Number: HO0-80803HBX

Xtreme Performance - Holley Ultra XP carburetors! Ultra XP carbs are 38% lighter than our original HP, 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)
Shiny with black anodized billet aluminum metering blocks and base plate
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)
Integrate d 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!

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: 57178923566

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 23 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
N
Verified Purchase
niresha allen
Battle Creek, US
★★★★★ 5
Awesome
Organization is good fit for all my jewels
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
N
Nuby
Draper, US
★★★★★ 5
Jewelry box that holds a lot.
Color: Pink, Size: 2 Layer
This jewelry box is so sturdy and holds A LOT of jewelry. Not only does it look gorgeous it’s actually functional and does its job ! I highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
D
D.
Lexington, US
★★★★★ 4
Perfect if you're anything like me
Color: White, Size: 2 Layer
I have about 20 small jewelry boxes sitting in my closet, stacked up high, threatening to topple over any time I reach over them to grab something else. I don't know what's in those boxes, except that it's jewelry I purchased and liked well enough to keep so that I could wear it again. But since all of the pieces are closed up inside, I almost never wear them because I don't want to dig through all 20 boxes to find the 1 thing I want when I'm already almost late to wherever I'm going. If ANY of that sounds anything like you, you need this jewelry box. Is it the most premium thing you've ever seen? No, but does it have a lot of storage space for a pretty compact form factor and hold a ton of stuff? Yes, it totally does. And is the price super reasonable? Yes, it is. And if you kind of squint at it, and look through softer eyes, it doesn't really matter that yes, this is kind of cheaply constructed, and the dividers do move around a little bit because they're not anchored to the sides of the trays. I was able to consolidate all of those jewelry boxes down into this one box, and I no longer need to hold my breath when I try to grab something over the top of the pile because I was able to throw. them. all. out! The satisfaction of purging my own personal leaning tower of Pisa was worth the price alone. But onto the nitty gritty details: yes, the see-through part is acrylic and not glass. I'm okay with that because I don't need more breakable things sitting in my closet. Yes, the dividers aren't super stable. I'm okay with that because they work well enough and keep each piece where it belongs. Yes, it's pleather (aka "vegan leather"). I'm okay with that because I don't need cow hide to hold my jewelry to make it feel more precious, especially because most of my jewelry is pretty inexpensive stuff anyways. I don't notice any glaring cosmetic defects when looking at it, aside from the one very squiggly scratch in my acrylic top that doesn't bother me too much, but since it does mean that quality control may be a bit lacking, this gets a very solid 4 stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2025
J
Jocelyn Turner
Bozeman, US
★★★★★ 5
Elegant Jewelry Box
Color: Pink, Size: 2 Layer, Color: Pink, Size: 2 Layer
Very stylish and elegant jewelry box suitable for your jewelry needs. I needed something for my extensive jewelry collection. I use this for my everyday jewelry, and it works perfectly. I chose the two-tier jewelry box, and I love how sturdy it is. You can put a lot in the box without it being overcrowded. The blush color gives it a soft look, but also the compartments on the inside are soft as well. It is of good quality and a value for what you get.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 2, 2025
D
David
Belleville, US
★★★★★ 4
Pretty jewelry box
Color: Pink, Size: 2 Layer, Color: Pink, Size: 2 Layer
I really like this jewelry box. It is a great size and can fit lots of pieces. The box is also chic and a beautiful pink color. It also seems to be well made. The only thing I don’t love about it is the lack of variety in the compartment size. The compartments are large or small squares, if there were long rectangular compartments they would be more ideal for necklaces. Overall this jewelry box works well and is worth the cost.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2025

recommand products

Team Associated 30w (350 cSt) Silicone Shock Oil 118ml 5472
18.00
Team Associated RC10 Shock Rebuild Set Suits 2 Shocks 6440
20.00
Team Associated TC5 CVA Bones 31232
16.00
Room divider Double-sided rotatable, Dew-drenched snowdrop
106.14
Room divider Double-sided rotatable, Cockatoo pair
173.85