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XP-Series Carburetor XP-4412 2 BBL. Circle Track Carburetor

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CFM
Fuel

PART# XP-4412

$640.95   Suggested Retail
$519.26   Holleydays Price
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Overview

In circle track classes that mandate two-barrel carburetors, customizing a street carburetor has been the norm for decades. Not anymore. Designed from the ground up to meet the unique demands of circle track racing, QFT's new XP-Series offers the performance benefits of a custom carburetor in an affordable, turnkey, class-legal package. At a bare minimum, modifying a standard street carburetor for circle track duty typically involves changing the throttle-plates, floats, and metering blocks. These custom modifications can easily exceed the cost of a turnkey QFT two-barrel carb while still lacking many of the key features that only a clean-sheet redesign can offer. A high-flow aluminum main body design centers the venturi over the throttle-body assembly. To further increase airflow, QFT centers the air horn over the venturi, removes the choke tower, and carefully profiles the air inlet transition. The result is enhanced airflow and fuel distribution, which improves throttle-response and horsepower. All XP-Series carburetors are equipped with roller bearing seals which provide smoother throttle response, less wear on shaft, and longer life. Available in 500- and 600 cfm sizes, the XP-Series sets a new standard in two-barrel circle track carbs. •High-flow aluminum main body with centered venturi for improved performance and better air/fuel distribution •Black anodized billet 2-Circuit metering block and throttle body •Throttle body incorporates roller bearing seals which provide smoother operation, less wear on shaft, and longer life •Anti-siphon check valve in main body to reduce pump pull-over •Changeable emulsion bleeds and power valve channel restrictions for better tuning capabilities •Dual inlet fuel bowl with #8AN fittings •Dual sight glass windows for easy float adjustment •Single wedge circle track float •Exclusive Black Diamond® coating for enhanced corrosion protection and appearance. Provides a 6% reduction in fuel temperature.

Specs

Barrels2
Billet ColorBlack
BoosterStraight
BrandQuick Fuel
CFM500
ChokeNone
Circuit2
Emission Code3
FinishBlack
FuelGasoline
Fuel SystemCarbureted
High Speed Air Bleed36
Idle Air Bleed Size73
MaterialAluminum
ModelXP-Series
Primary Main Jet74
Primary Power Valve60
Primary Pump Nozzle Size35
Product TypeCarburetor
SecondariesNone
Secondary Main JetN/A
Supercharged ApplicationNo
Throttle Bore1-11/16 inch
Part NumberXP-4412

Emissions

This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing 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

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

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    Some parts are not legal for use in California or other states with similar regulations.

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