SKU: 9245489871

750CFM Ultra XP Carburetor - 0-80803BKX

Sale price$584.98 Regular price$649.98
Save 10%

Pay in installments of $162.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

750CFM Ultra XP Carburetor - 0-80803BKXOverview: 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)
  • 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)
  • 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 Shiny with Black Billet
Booster Down Leg
Brand Holley
Carburetor Use Professional Race
CFM 750
Choke None
Circuit 2
Condition New
Emission Code 3
Finish Shiny
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: 9245489871

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 12 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Kelsey Ruud
Chelsea, US
★★★★★ 4
Good quality desk for the money
Color: White, Size: 40inch without Power Outlet
Overall this is nice little desk, cute, sturdy, and relatively easy to put together by myself. I took one star off because the bottoms of the desk drawers was missing. I contacted the seller and initially got a pretty quick response that the manufacturer would send replacement pieces and provide the shipping tracking information from the warehouse as soon as they had it. Then a few weeks went by without any word and I couldn't seem to contact anyone again (every link came up broken) so I thought I was essentially ghosted. But then they did contact me with the tracking information and eventually sent the replacement drawer flats. So it took almost two months to resolve but I did get the missing pieces and overall I'm pretty happy with this desk as it was exactly what I wanted for my small home office.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 29, 2024
S
Verified Purchase
Shah Zahory
Boise, US
★★★★★ 5
Good value for the money
Color: Black, Size: 40inch without Power Outlet
Quality materials. Everything went together as it should. Good value for the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026
S
Verified Purchase
Sheli Riley
Natrona Heights, US
★★★★★ 5
Perfect desk for a bedroom
Color: White, Size: 40inch without Power Outlet, Color: White, Size: 40inch without Power Outlet
Perfect desk for a bedroom. Easy to install and looks great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
B
Verified Purchase
Ben K
New York, US
★★★★★ 5
Looks good and is sturdy.
Color: Soft White, Size: 40inch without Power Outlet
Looks good and is sturdy. Uses white stickers to cover the screws rather than plugs
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
S
Verified Purchase
Sandra Chavez
Charlottesville, US
★★★★★ 3
Not a sturdy construction
Color: White, Size: 40inch without Power Outlet
I was excited about this purchase until I tried to assemble it. I bought this desk because i liked the design and the size. It also had great reviews as a sturdy desk. One of the joints fell apart. Parts of the desk have lock in screws wile other joints have these smaller locks that don't really work. I didn't return it because it's to heavy for me to re-box. I'm 66. I'm really disappointed. I wish furniture came already assembled. Hard to find these days. I guess I'll go back to purchasing real wood items from Facebook Market Place and thrift stores.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2025

recommand products