Carburetors & Accessories

• 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; 5/16-18 bent air cleaner stud included
• Down-leg boosters for improved fuel signal
• Same 1-3/8” Venturii & 1-11/16” Throttle Bore size and Throttle Plate/Throttle Shaft size of original 0-4412
• Clear sight windows on both sides of bowl for easy & safe fuel level adjustments
• -8 O-ring inlet threads offer a variety of plumbing options (come with an extended -8 O-ring to -8AN male adapter and -8 plug)
• Throttle shaft rides in oil impregnated sintered bronze bushings for smooth throttle actuation
• 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
• Set screw for wide open throttle stop adjustment
#NOTE: Due to the California Air Resources Board (CARB) restrictions, we no longer ship carburetors to the state of California.

• Factory replacement emission legal carburetor. Please verify your make and model application on the chart available in the Tech Resources tab.
• Vibratory polished for good looks
• Performance upgrade for stock to mildly modified vehicles
• Universal calibration for easy bolt-on performance
• Factory preset electric choke for easy startups
• Vacuum secondaries for use on wide variety of vehicles. Compensate for all vehicle weights, gearing & transmissions to allow smooth opening of secondaries.
• Dual feed fuel inlets for constant high volume fuel delivery
• Compatible with GM, Chrysler, and Ford A/T kickdown linkage. Additional parts may be required.
• Power valve blow-out protection
• 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
#NOTE: Due to the California Air Resources Board (CARB) restrictions, we no longer ship carburetors to the state of California.

• Holley 4150 Aluminum Ultra XP 750 CFM 4-Barrel Carburetor, Black
• Aluminum Construction (saves 4.5 lbs - 38% weight savings)
• Hard Core Gray with black anodized billet aluminum metering block and booster inserts
• Designed for use on Drag race, circle track, or any high horsepower engines
• Contoured venturri inlet offers balanced airflow for increased horsepower
• Dual 30cc accelerator pumps provide the perfect amount of fuel from idle to full throttle
• Clear sight windows on both sides of bowls for easy and safe fuel level adjustments
• -08 AN o-ring inlet threads offer a large variety of plumbing options
• 4 corner idle allows you to precisely control your idle system
• Elongated mounting holes allow fitment on intakes with square flange (4150 style) or large flange (Dominator style)
• Knurled primary and secondary curb idle screws allow for easy idle adjustment without the use of tools
• Primary throttle shaft capped to prevent entry of debris & contaminates
• Factory machined accessory mounting hole for easy addition of adjustable primary throttle stop
• Stainless steel adjustable secondary link
• Includes notched float and jet extensions
#NOTE: Due to the California Air Resources Board (CARB) restrictions, we no longer ship carburetors to the state of California.

• Adjustable metering block for 2-barrel HP models
• For carburetor P/N 0-80787-1
• Can be recalibrated and used on 0-80583-1
• Use bleed kit P/N 36-322

• Carburetor Rebuild Fast Kit for 2300 Models
• Genuine Holley Quality Parts
• Extra Parts for Performance Tuning
• Step-By-Step Instructions
• Detailed Tuning Guide
• Packaging Also Parts Tray

• Carburetor Rebuild Fast Kit for 4150 Models
• Genuine Holley Quality Parts
• Extra Parts for Performance Tuning
• Step-By-Step Instructions
• Detailed Tuning Guide
• Packaging Also Parts Tray

• Carburetor Rebuild Fast Kit for 4500 Models
• Genuine Holley Quality Parts
• Extra Parts for Performance Tuning
• Step-By-Step Instructions
• Detailed Tuning Guide
• Packaging Also Parts Tray

• Holley Carburetor Rebuild Renew/Repair Kit for 2 BBL 4412 Model 2300
• Genuine Holley Quality Parts
• Extra Parts for Performance Tuning
• Step-By-Step Instructions
• Detailed Tuning Guide
• Packaging Also Parts Tray

• Carburetor Accelerator Pump Check Valve
• Umbrella Type Check Valve
• Sold as Pair