SKU: 75071621995

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

Sale price$1137.60 Regular price$1264.00
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

Holley 750cfm Ultra XP Aluminium Carburettor (HO0-80803RDX)HO0 80803RDX 750CFM NEW ALLOY ULTRA XP Shiny Aluminium with Red Billet Metering Blocks & Base Plates Part Number: HO0 80803RDX 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

HO0-80803RDX - 750CFM NEW ALLOY ULTRA XP

Shiny Aluminium with Red Billet Metering Blocks & Base Plates

Part Number: HO0-80803RDX

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:
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  • 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: 75071621995

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nick
Phoenix, US
★★★★★ 5
Color and weight are perfect
Team Name: Lightweight Comforter, Size: King, Color: Sage Green, Team Name: Lightweight Comforter, Size: King, Color: Sage Green
Perfect, lightweight; just what I was looking for. It’s soft and feels nice. Sage Green color is true to the photo. I bought a king for a queen bed, I’m glad I didn’t get the queen because it would have left my mattress visible but I can still see the bed with the king. For the price, it’s okay quality and I’m okay with that.
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Reviewed in the United States on June 7, 2026
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Morgan
Charlottesville, US
★★★★★ 5
Lightweight, Cozy, and Affordable!
Team Name: Lightweight Comforter, Size: Queen, Color: Lavender Purple
This comforter is such a great value for the price. It’s lightweight but still warm and cozy, making it perfect for year-round use. The fabric feels soft to the touch, and it fluffs up nicely right out of the package. The queen size fits my bed perfectly and looks great once styled with pillows. It also washes well — I tossed it in the washer and dryer and it came out just as fluffy as before, no clumping or shifting. If you want a comfortable, budget-friendly comforter that looks and feels nice, this is definitely a great pick!
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Reviewed in the United States on September 10, 2025
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sarina
Dallas, US
★★★★★ 5
Much lighter still fluffy
Team Name: Lightweight Comforter, Size: King, Color: White
My last one was 200-250 gsm. This is 150gsm it is perfect. Still fluffy. Not to flat and perfect to go in my douvet and much cooler
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Reviewed in the United States on May 16, 2026
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Kat
Chelsea, US
★★★★★ 3
King Size does not include corner tabs
Team Name: Lightweight Comforter, Size: King, Color: White
DISCLAIMER - KING COMFORTER DOES NOT HAVE CORNER TABS I've ordered 2 comforters prior to in the Queen size which included handy corner tabs to secure the duvet cover. I recently ordered in the King size and the tabs weren't there. Thinking I got defective product, I returned and was sent a replacement. I was disappointed to discover the replacement also didn't have tabs, so I guess the comforters made in the King size just don't have them. It would be helpful to have that listed somewhere in the product details. It's not worth the trouble of returning again so I'm keeping it. Otherwise the lightweight feel of this comforter is great for Florida weather, obviously we liked these so much we have three in our home now!
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Reviewed in the United States on September 11, 2025
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Amynicoles
Alexandria, US
★★★★★ 5
Perfffff
Color: White, Size: Oversized King, Color: White, Size: Oversized King
So very comfy! I did not expect to love this as much as I do. I was worried about it being too hot. It’s not. I was used to sleeping with a quilt but this is so comforting, the weight of it is so cozy & perfect. I sized up with oversized king for my king size duvet cover. Its so fluffy and perfect for the aesthetic I wanted
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Reviewed in the United States on June 8, 2026

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