Holley 0-80812HBX | Carburetor

Part Number
0-80812HBX
Ultra XP Carburetor
$1,125.58
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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!


BRAND: Holley




FEATURES:


  • Holley Performance Emission Code 3: This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles. The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles: 1965 and older U.S. manufactured California Certified vehicles/1967 and older U.S. manufactured Federally Certified vehicles/1967 and older Foreign manufactured vehicle. The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle. The following vehicles are considered Emissions Controlled Vehicles: 1966 and newer U.S. manufactured California Certified vehicles/1968 and newer U.S. manufactured Federally Certified vehicles/1968 and newer Foreign manufactured vehicle
  • Fuel Bowls Provide 20% More Fuel Capacity Controls Slosh
  • Has A Set Screw In The Base Plate For Wide Open Throttle Stop
  • Idle Bypass Valve Eliminates Need For Holes In Throttle Plates
  • Metering Blocks Feature Durability True Gasket Sealing
  • Saves 4.5 Pounds 38% Weight Savings
  • Aluminum Construction
  • Clear Sight Windows For Easy/Safe Fuel Level Adjustments
  • Metering Blocks/True Gasket Sealing/Fully Adjustable
  • Ultra XP Carburetor| 4bbl| 650cfm| 2CircuitMetering| Model 4150UXP| Mech. Secondary| Gas| Dual Fuel Inlet| Dbl Accelerator Pump| HardCoreGray w/Blk Metering Block/Booster Inserts|
  • 4150 Race Carbs
  • Ultra XP Carburetor
  • Dual 30CC Accelerator Pumps Fuel From Idle To Full Throttle
  • Throttle Shafts Rides In Oil Smooth Throttle Actuation
  • Air Bleeds Moved Outward Allow Smoother Transition Of Airflow
  • Mechanical Secondary Calibrated for Circ
  • Contoured Venturi Inlet Balances Airflow For Increased hp


SPECIFICS:


BarrelFour
Billet ColorHard Core Gray with Black
Booster TypeDown Leg
Carburetor Type4150
CFM650
ChokeNone
Circuit2
EmissionWithout EGR
FinishHard Core Gray
FlangeSquare Bore
Fuel InletDual
Fuel TypeGasoline
MaterialAluminum
Primary Main Jet74
Primary Power Valve6.5
Secondary Main Jet82
Secondary Pump Nozzle Size32
Secondary TypeMechanical
Supercharged ApplicationNo
Throttle Bore1.688 in.
TypeAutomotive
UsageRacing
Venturii Size1.250 in.
WARNING CA Proposition 65Yes
WARNING CA Proposition 65 MessageWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov



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