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Description
Holley Aluminum Ultra XP Carburetor 750cfm # HO0-80803HBXHolley Aluminum Ultra XP Carburetor 750cfm # HO0 80803HBX Carburetors, Ultra XP, 750 cfm, 4 barrel, Square Bore and Dominator Mounting, Mechanical Secondaries, Dual Inlet, Grey and Black Finish, Each CFM: 750 Fuel Category: Gasoline Remanufactured: No Number of Barrels: 4 Carburetor Flange: Square bore Dominator Choke: None Secondary Type: Mechanical Fuel Inlet: Dual Primary Jet Size: 76 Primary Power Valve (Hg): 6. 5 Hg Primary Discharge Nozzle Size
Holley Aluminum Ultra XP Carburetor 750cfm # HO0-80803HBXCarburetors, Ultra XP, 750 cfm, 4-barrel, Square Bore and Dominator Mounting, Mechanical Secondaries, Dual Inlet, Grey and Black Finish, Each
CFM:
750
Fuel Category:
Gasoline
Remanufactured:
No
Number of Barrels:
4
Carburetor Flange:
Square bore/Dominator
Choke:
None
Secondary Type:
Mechanical
Fuel Inlet:
Dual
Primary Jet Size:
76
Primary Power Valve (Hg):
6.5 Hg
Primary Discharge Nozzle Size (in.):
0.031 in.
Secondary Jet Size:
76
Primary Outer Air Bleed Sizes Included:
73
Primary Inner Air Bleed Sizes Included:
36
Secondary Discharge Nozzle Size (in.):
0.031 in.
Secondary Power Valve:
6.5
Secondary Outer Air Bleed Sizes Included:
73
Secondary Inner Air Bleed Sizes Included:
36
Carburetor Color:
Gray anodized
Ford Kickdown:
No
Booster Type:
Down-leg
Throttle Linkage Type:
Universal
Carburetor Height (in.):
3.250 in.
Quantity:
Sold individually.
Notes:
Billet aluminum black anodized metering blocks. -8AN O-ringed inlet threads. Come standard with -8AN o-ring to -6AN male adapter and -8AN plug. Can be plumbed from either side.
Special Attention:
Holley Ultra XP race carburetors are for race applications only and are not designed or suggested for street use. Ultra XP carburetors do not provide attachment points for street transmissions, vacuum outlets or stock throttle linkage and cables.
Holley Aluminum Ultra XP Carburetors
Holley's Ultra XP carburetors are up to 38 percent lighter than their traditional carbs, offer 20 percent greater fuel capacity, and include a host of other features. One of the main perks is an integrated idle bypass valve that allows for idle adjustments while maintaining the proper throttle-plate-to-transfer-slot relationship. You'll also get all-aluminum construction, fully tunable billet metering blocks, billet base plate, adjustable secondary linkage, and knurled (hand-adjustable) curb idle screws. Enjoy the ultimate in square-bore race carbs; order the Ultra XP carburetor with options best suited for your race application!Some of the many other features include: Your choice of several finishes and CFM ratings (from 600 to 950) Contoured Venturi inlet offers balanced airflow for increased hp Dual accelerator pumps provide the perfect amount of fuel, from idle to full-throttle Clear sight windows on both sides of bowls for safe and easy fuel level adjustments -8 AN (O-ringed) inlet threads offer a large variety of plumbing options from either side Mechanical secondaries for perfect off-the-line launches 100-percent wet-flow tested by Holley technicians
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Carefully Researched Gives Insight To 19Th Century Occurances of: American, Canada, and Mexico!
Format: Hardcover
This book is a treasure as it covers not only the American Civil War but what intricate details are behind it and more, in addition covers the same eras for the Dominion of Canada, and French take over of Mexico along with the factors leading to "Cinco De Mayo," and more. As an avid reader of American History also as a amature historian this book is carefully detailed and gives insight to the racial and political beliefs at the life and times of the 19Th. Century. It deserves a place on your bookshelf and/or library. In these contemporary times, I am still more than pleased the the border frontiers between the Republic of Canada and United States of America remain the: "Longest Undefended Borders" in the entire globe.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2025
★★★★★ 4
Another Thought Provoking Book
Format: Kindle
Having read Professor Taylor's American Republics I greatly anticipated this volume in his series. The examination of both the Canadian and Mexican stories in this book along with the American Civil War helps provide context to the traditional narrative. I find his approach useful as it shows how the interactions between the US and its neighboring nations evolved. I'm hoping he continues the series
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2024
★★★★★ 5
A Minority View of our History
Format: Kindle
If you want to learn more about American history from the perspective of minorities, this is a crowning achievement. It is long so I focused on reading the chapters on the US and it gave me an understanding of just how brutal the challenges were but how significant the slow process of building our multicultural society was as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
★★★★★ 5
Eye opening!
Format: Hardcover
I've read tons of books and biographies connected to American history, perhaps because I'm the son of immigrants, but have never read a survey like this one. By describing in luscious and sometimes horrific detail the wars being fought in Mexico and the main Canadian provinces alongside our Civil War, we get patterns, intersections, and insights that simply would not be available reading about any one struggle. I love this book which is teeming with wonderful portraits and dramatic scenes.
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Reviewed in the United States on April 22, 2025
★★★★★ 5
A worthy and worthwhile fourth volume in the series
Format: Kindle
Once again, Taylor frames a critical period of the past in terms of the continent of North America and ties the US Civil War to the one occurring concurrently in Mexico and Canada's move toward Dominion. All thoughtfully told and expertly researched.
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Reviewed in the United States on June 11, 2024
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