Holley 0-80812BKX Ultra XP Circle Track Carburetor, 650 CFM, Shiny

#425080812BKX

Holley 0-80812BKX Ultra XP Circle Track Carburetor, 650 CFM, Shiny

Name: Holley 0-80812BKX Ultra XP Circle Track Carburetor, 650 CFM, Shiny
Brand: Holley
SKU: 425080812BKX
Price: 1229.95 USD
Availability: InStock
Rating: 5 (2 reviews)

2 Reviews

4 Questions

It is calibrated specifically for use on circle track
Includes an anti-siphon valve in main body to reduce pump pullover
Has a set screw in the base plate for wide open throttle stop adjustment

$1,229.95

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Product Summary

4-Barrel Carburetor Barrels, Gasoline Fuel Type, Shiny

It is calibrated specifically for use on circle track
Includes an anti-siphon valve in main body to reduce pump pullover
Has a set screw in the base plate for wide open throttle stop adjustment
Features a shiny with black anodized billet aluminum metering blocks and base plate
The metering blocks feature improved durability, true gasket sealing and are fully adjustable

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Key Specs

Carburetor Barrels	4-Barrel
Fuel Type	Gasoline
Choke Type	No Choke
CFM Range	600-699 CFM
CFM	650 CFM

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Holley 0-80812BKX Details

Holley Ultra XP Circle Track carburetors are 38% lighter than the original HP, have fuel capacity that is 20% greater and 30 other new features! Holley Ultra XP Carburetors are specifically calibrated for Circle Track & offer new features such as anti-siphon valve in the main body; high capacity HP 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, wedge floats, adjustable secondary linkage and knurled (hand adjustable) curb idle screws. Holley Ultra XP carburetors are the ultimate in square bore race carburetors!

Shiny with black anodized billet aluminum metering blocks and base plate
Calibrated specifically for use on circle track
Has a set screw in the base plate for wide open throttle stop adjustment
PTFE coated throttle shafts rides in oil impregnated bronze bushings for smooth throttle actuation
Anti-siphon valve in main body to reduce pump pullover
Metering blocks feature improved durability, true gasket sealing and fully adjustable (emulsion bleeds, power valve channel restrictors & idle feed restrictors)
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
-8 (o-ringed) female inlet threads offer a large variety of plumbing options and can be plumbed from either side; includes 2 ea -8 AN o-ring male port to -6 AN male fittings
4 corner idle allows you to precisely control your idle system
Internal pump passage in metering block equipped with a tunable bleed off for further tuning of accelerator pump
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
Set up with 1:1 throttle actuation
Baseplate designed with a boss that can be consumer machined for vacuum source
Includes wedge floats
100% wet-flow tested by Holley technicians to assure it arrives ready to run

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Installation Instructions (PDF)

Guides & Documents

Carburetors Installation Instructions (425080812BKX)

Determining the Best Performance Carburetor For Your Application

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Holley 0-80812BKX Specifications

KEY SPECS
MFG. Part #	0-80812BKX
Brand	Holley
Carburetor Barrels	4-Barrel
Fuel Type	Gasoline
Choke Type	No Choke
CFM Range	600-699 CFM
CFM	650 CFM
Carburetor Flange Type	4-Barrel Square Bore
Finish	Shiny
Material Type	Aluminum
Color	Black
Secondary Type	Mechanical
Fuel Inlet Type	Dual
Gasket(s) Included	Yes
New or Remanufactured	New
Throttle Linkage Type	Universal
Supercharged Application	No

GENERAL
Model	4500UHP
Booster	Down Leg
Number of Circuits	2
Emission Code	3
Throttle Bore	1.688 inch
Venturi Diameter	1.250 Inch
Bolt Hole Pattern	5.160" x 5.625"
GTIN Code	090127720936
Sold in Quantity	Each

Ratings & Reviews

2 Reviews

Overall Assessment

The Gotra Race car has been lauded for its high quality and usability highlighted by customers' intent to re-purchase. The standout feature mentioned by consumers includes a well-functioning carburetor, illustrating its superior performance. The products' practicality and durability, based specifically on material quality, have significantly outshone competitors.

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2 reviews

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Just what I needed

5.0

a year ago

1939ford

Kearney, ne

Verified

Gotra Race car

Would Recommend

I would buy this product again

5.0

7 years ago

Andy

Georgia

Verified

Good carburetor

Would Recommend

Showing 2 of 2 reviews

Questions & Answers

4 Questions • 4 Answers

Sort Questions

Will this carb work on a 604 crate?

by Ganue

• 9 years ago

1 answer

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What jets come in this carb

by Scott

• 9 years ago

1 answer

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Is this carb Imca legal?

by Mike

• 9 years ago

1 answer

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What fuel log is recommend

by Scott

• 9 years ago

1 answer

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4 of 4 questions shown