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Q-Series Carburetor Replacement for 4412 500CFM Gauge Rule Circle Track

Part # Q-500-CT Be the first to write a review

500 CFM - 4150 - Zinc - Gasoline

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Q-Series Carburetor Replacement for 4412 500CFM Gauge Rule Circle Track

Free Shipping - Lower 48 US States

In Stock

Advertised Price $819.95
$654.95
Save $165.00

While modifying a street carburetor for circle track applications can work reasonably well, Quick Fuel Technology's Q-Series circle track carbs eliminates the guesswork and offer substantial advantages in adjustability, consistency, and predictability. Since racing around a banked oval pushes fuel to the passenger side of the car, Q-Series circle track carburetors feature die-cast aluminum fuel bowls with internal baffles that eliminate slosh. The bowls also feature an integrated fuel chute that substantially reduces aeration, and directs fuel toward the main jet pickup area. To assist in flattening out the fuel curve, screw-in air bleeds enable fine-tuning of both the low- and high-speed systems, while a proprietary booster design enhances carb signal without restricting high-rpm airflow. Helping drivers put the power down is an adjustable QuickLink system that allows changing the opening rate of the secondaries to 40-, 60-, or 100 percent. Circle track Q-Series carbs are available in 6 different sizes ranging from 650-1,050 cfm for both gasoline and alcohol applications. All Q-Series circle track carburetors are equipped with roller bearing seals which provide smoother throttle response, less wear on shaft, and longer life.

About Quick Fuel Technology

Looking for carburetors and carburetor parts for drag racing and street rods? Shop on Holley.com, the official site for QFT products.

Adjustable Air BleedsNo
Adjustable Emulsion BleedsNo
Adjustable Idle Feed RestrictorsNo
Air Cleaner Flange Diameter5-1/8
Barrel Quantity2
Barrels2
Barrels Quantity2
Billet ColorDiecast-No Billet
Body ColorGold Dichromate
Body FinishPlated
Body MaterialAluminum
BoosterStraight
Booster DesignStraight
Brand Quick Fuel Technology
Carburetor UsePerformance and Race
CategoryAir and Fuel Delivery
CFM500
CFM Rating500
ChokeNone
Choke TypeNone
Circuit Count2
ColorGold Dichromate
ConditionNew
Cubic Feet Per Minute Rating500
Emission Code3
FinishZinc
Flange ShapeSquare
Flange TypeSquare/4150
Float LevelExternally Adjustable
FuelGasoline
Fuel Inlet CountSingle
Fuel Inlet Type5/8-18 Inverted Flare
Fuel SystemCarbureted
Fuel TypeGasoline
Gasket Or Seal IncludedYes
Grade TypeCircle Track
Linkage AttachedYes
Marine ApprovedNo
Marine UseNo
MaterialAluminum
Meter Block MaterialCast Aluminum
Metering Block ColorAs Cast
Model2300
Mounting Hardware IncludedNo
Mounting Hole Quantity4
Part TypeCarburetor
Primary Float TypeCenter Hung Nitrophyl
Primary Main Jet Size74
Primary Power Valve45
Primary Pump Nozzle Size31
Primary Throttle Bore Diameter1.6875
Primary Venturii Diameter1.375
Product TypeCarburetor
SecondariesNone
Secondary Barrel TypeNone
Secondary Jet ExtensionsNo
Secondary Main Jet SizeN/A
Secondary Throttle Bore Diameter1.6875
SeriesQ-Series
Sub CategoryCarburetion
Supercharged ApplicationNo
Throttle Bore Diameter1-11/16 inch
Vacuum Ports1 timed (spark) port
WarrantyManufacturer's Limited 90 Day Warranty
UPC849804000713
Part NumberQ-500-CT
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) 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


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
Notice - Due to the natural color variations of the dichromate plating process, the plating color may vary from casting to casting (within a carburetor) and from carburetor to carburetor. This is considered normal and is not a cosmetic defect. If you desire a carburetor with no color variation, please shop our black and shiny finish carburetors.
Manufacturer's Limited 90 Day Warranty: See Details
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    *Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

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

    Q-Series Carburetor Replacement for 4412 500CFM Gauge Rule Circle Track
    Q-Series Carburetor Replacement for 4412 500CFM Gauge Rule Circle Track
    Advertised Price $819.95
    $654.95
    Save $165.00