carburetors

Holley 0-80801HBX - Ultra XP Circle Track Carburetor

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$852.95

$915.95

You save: $63.00 (7%) off MSRP

Unavailable

This product is currently unavailable.

This is a universal fit product

  1. That means this product doesn’t have fitment for any specific vehicle.
  2. If fitment is applicable for your application, be sure to check compatibility with the other components.
Authorized Dealer
white carb warning, not legal street use in California Not for sale or street use in California.

About this product

Part #: 0-80801HBX

Xtreme Performance - Holley Ultra XP(TM) Circle Track 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 Hard Core Gray(TM) hard coat anodized finish with Black(TM) billet for improved corrosion protection & also available in natural tumble-polished aluminum with Black(TM) metering blocks and base plate. The Aluminum Ultra XP Cirlce Tracks are available in 650 & 750 CFM's. 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!

More Details

BarrelFour
Billet ColorHard Core Gray with Black
Booster TypeDown Leg
CFM600
Carburetor Type4150
ChokeNone
EmissionWithout EGR
FinishHard Core Gray
FlangeSquare Bore
Fuel InletDual
Fuel TypeGasoline
MaterialAluminum
Primary Main Jet68
Primary Power Valve6.5
Secondary Main Jet68
Secondary Pump Nozzle Size32
Secondary TypeMechanical
Supercharged ApplicationNo
Throttle Bore1.563 in.
TypeAutomotive
UsageStreet/Hi-Performance
Venturii Size1.250 in.
WARNING CA Proposition 65Yes
WARNING CA Proposition 65 MessageWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Additional Documents
  1. Warrantypdf

See what our community says about holley products

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What made you choose this particular product?
Recommendations from others who have installed it.
What were you trying to accomplish by adding this product?
Better cold start, improved idle, stable RPM when A/C kicks in, smoother throttle transition.
Was it easy install? Any installation tips that will help others?
Wiring was easy.
Once you’ve had a chance to use the product, did it meet your expectations?
It works great.
Any additional comments?
I would recommend Holley's filter with a fuel pressure regulator and return line.
View on Robert's build
Jesus Verduzco

374

Jesus Verduzco
1965 Ford Mustang
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
More power
What were you trying to accomplish by adding this product?
More power, more smiles per gallon
Was it easy install? Any installation tips that will help others?
Very easy to install
Once you’ve had a chance to use the product, did it meet your expectations?
Yes, runs like a monster
View on Jesus's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Readily available
What were you trying to accomplish by adding this product?
More horsepower
Was it easy install? Any installation tips that will help others?
Installed it myself
Once you’ve had a chance to use the product, did it meet your expectations?
Great adjustability and tuneability, but still a carburetor
View on Jim's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Came with the truck
View on Preston's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

*Some manufacturer restrictions apply.

About Holley

Holley® has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies we can give you the edge you need over the competition!

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