Features:

• All aluminum construction - for nearly 50% weight savings over zinc version
• Hard Core Gray with 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 venturii 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” Venturii & 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
• -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
• Throttle shaft rides in oil impregnated sintered bronze bushings for smooth throttle actuation
• Throttle shaft capped to prevent entry of debris & contaminates
• 30cc pump with metal lever. Anti-siphon valve in mainbody to reduce pump pull over
• 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!

About Holley

Looking for Holley performance products? We're the undisputed leader in carburetors, fuel pumps, fuel injection, intake manifolds, and more. Buy now!

• Fuel Bowl Gasket

  For Model 2300™, Model 4150™, Model 4160™ and Model 4500™ Two Circuit Carburetors

  Part# 108-83-2

  $14.44

  Qty: 

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• Inlet Needle - Viton

  Inlet Needle Viton® Tip Adjustable 0.110" Seat Size (Viton® is a registered trademark of DuPont Performance Elastomers)

  Part# 6-504

  $25.82

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• Metering Block Gasket

  For Models 2300™, Model 4150™ Model 4160™ and Model 4500™ without Intermediate Circuit

  Part# 108-89-2

  $14.44

  Qty: 

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• Carburetor Standard Main Jet

  Standard Main Jet, 1/4-32 Thread, .081" Jet size

  Part# 122-74

  $11.33

  Qty: 

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• Trick Kit Carburetor Rebuild Kit

  Trick Kit Carburetor Rebuild Kit Holley Vac. Sec. & Double Pump

  Part# 37-933

  $189.95

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• Single-Stage Power Valve

  Single-Stage Power Valve Standard Flow 5.0 in. High

  Part# 125-50

  $14.44

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• Replacement Fuel Bowl Kit

  Replacement primary center hung Fuel Bowl Kit For Use w/model 4160, 4150, and 2300 (0-4412) series carburetors with center hung bowls. Excluding model 4165. Standard finish

  Part# 134-103

  $113.95

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• Carburetor Adapter Plate - Black Anodized Billet

  Billet Carburetor Adapter Plate for 2bbl 2300 Series models (0-4412to a 4150 Square Bore manifold ) - Black Anodized

  Part# 17-90

  $155.95

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• Fast Kit Carburetor Rebuild Kit for 2300 Ultra XP Carburetors

  Part# 37-1550

  $45.44

  Qty: 

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• Carburetor Adapter Plate - Clear Anodized Billet

  Billet Carburetor Adapter Plate for 2bbl 2300 Series models (0-4412) to a 4150 Square Bore manifold - Clear Anodized

  Part# 17-89

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• METERING BLOCK KIT

  Replacement Primary Metering Block; Holley 2300 Series 4412 Carburetors

  Part# 134-137

  Qty: 

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• THROTTLE BODY KIT

  Carburetor Base Plate Assembly for 2300 series; 500 CFM

  Part# 112-2

  $222.95

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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