Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
For Your Every Summer RSVP, with Code: SUMMER15
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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.1 ★★★★★
Based on 2144 reviews
Sort
Product Reviews
★★★★★ 5
Heel saver
Size: 3 Pairs - Gray, Green, Pink
These little things are great, super comfy and I saw the difference in my feet after one use
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
★★★★★ 5
Bouncy, not hard, and good value.
Style: Fetch Balls (Pack of 10), Size: 2.5 inch
Great balls for the ball launcher and not rockhard like some of the solid rubber balls. These have great bounce, and because of the two holes, they make a fun whistling noise as they fly through the air. My dogs love them and they are a good value.
By the way, if you throw them too hard, they will go through chain-link and no climb fence because they squish a bit!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
★★★★★ 5
Excellent dog balls — safe design and very durable
Style: Fetch Balls (Pack of 3), Size: 2.5 inch
These fetch balls from Amazon Basics are fantastic, and my dog absolutely loves them. One of the biggest reasons I prefer these over other brands is the hole that runs through the center of the ball. This is a very important safety feature: if a dog were to accidentally get the ball stuck in the back of the throat, the hole allows air to pass through. That small detail could literally make a life-saving difference.
Aside from the safety benefit, they bounce well, are easy to clean, and hold up to a lot of playtime. They’re firm but not rock-hard, and my dog goes crazy for them. Great value, great quality, and a thoughtful design.
Highly recommended for dog owners who want a safer alternative to standard solid rubber balls.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
★★★★★ 5
Great ball for heavy chewers
Style: Assorted Balls (Pack of 3), Size: 2.5 inch
Great toy for my Doberman. She chews through tennis balls in about 15 minutes but these are very durable. She likes to chase them but also just chew on them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
Durable
Style: Fetch Balls (Pack of 2), Size: 3 inch
Very bouncy. I like the noise it makes when you throw it. Pretty durable. Good size. Dog loves to play with them. Good material. Easy to use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
recommand products
Pom - Plum – Rechargeable, Discreet, Intimate Wellness Accessory – Quiet, Rechargeable, Waterproof, Couples & Solo Use, Discreet Intimate Wellness Accessory
159.90
Sweet Heart Kit
75.70
Seachoice Waterproof Universal Mount Combination Tail Light, 8-Function, Driver Side
38.95
Seachoice Universal Swim Platform w/ Top-Mount Telescoping Ladder, 2 Step Ladder, Inboard/Outboard
271.81
Seachoice 63081 Tinned Copper Marine Wire, 12 AWG, Black, 100'
65.12