DinanAuthorized Reseller

Holley Ultra XP 2BBL Carburetor

Part # 0-4412EX

  • E85 Fuel Compatible
  • All aluminum construction - for nearly 50% weight savings over zinc version
  • Black billet aluminum metering block and base plate
  • No choke tower for unobstructed airflow
  • Air bleeds moved outward to allow a smoother transition of airflow
  • Air cleaner flange centered over venturi for improved airflow and performance. 5/16-18 bent air cleaner stud included
  • Down-leg boosters for improved fuel signal
  • Contoured hex head squirter screw for streamlined airflow
  • Internal pump passage on metering block equipped with tunable bleed off
  • Same 1-3/8” venturi & 1-11/16” Throttle Bore size and Throttle Plate/Throttle Shaft size of original 0-4412
  • Fuel bowl provides 20% more fuel capacity while controlling slosh with internal baffling
  • Clear sight windows on both sides of bowl for easy & safe fuel level adjustments
  • Fuel trough designed into floor of bowl to route fuel flow directly to the jets and assists in keeping jets covered by fuel
  • Built in drain plug provides easy access to empty contents of bowl
  • Throttle shaft rides in oil impregnated sintered bronze bushings for smooth throttle actuation
  • Throttle shaft capped to prevent entry of debris & contaminates
  • 50cc pump with metal lever. Anti-siphon valve in main body to reduce pump pull over
  • -8 (O-ring) inlet threads offer a large variety of plumbing options (come with an extended -8 O-ring to -8AN male adapter and -8 plug). Can be plumbed from either side
  • Dedicated race-only throttle lever with all unnecessary street attachment points & tangs removed
  • Knurled (hand adjustable) curb idle screw allows for easy idle adjustment without the use of tools
  • Set screw for wide open throttle stop adjustment
  • Wedge float provides fuel control while cornering
  • 100% wet-flow tested by Holley technicians to assure it arrives ready to run!

Description

Holley carbs have powered more racers than all others combined and we've just changed the game again. Holley is proud to introduce the all new Ultra XP 2 Barrel. Holley 2 barrels have been a mainstay in oval track racing for decades, but racers always want more. They want more tuning ability, more durability, more weight savings and more features, so Holley listened and designed the all new Ultra XP 2bbl.

Specifications

Barrel Qty2
Barrels Quantity2
Billet ColorHard Core Gray with Black
Body ColorHard Coat Gray
Body FinishE-Coated
Body MaterialAluminum
BoosterDown Leg
Carburetor UsePerformance and Race
CFM Rating500
ChokeNone
Choke TypeNone
ColorHard Coat Gray
ConditionNew
Cubic Feet Per Minute Rating500
FinishE-Coated
Flange ShapeRectangular
Flange Type2300 2-BBL
FuelE85
Fuel InletSingle
Fuel TypeGasoline
Marine ApprovedNo
MaterialAluminum
Model2300
Performance GradePerformance
Primary Main Jet Size88
Primary Power Valve3.5
UPC / GTIN00090127713358
WarrantyManufacturer's Limited 90 Day Warranty