750CFM Ultra XP Carburetor

Features:

• Aluminum Construction (saves 4.5 lbs - 38% weight savings)
• Shiny with red anodized billet aluminum metering blocks and base plate
• Designed for use on Drag race, circle track, or any high horsepower engines
• Contoured venturri inlet offers balanced airflow for increased horsepower
• Air bleeds moved outward to allow a smoother transition of airflow from the top of the carburetor into the venturii
• Metering blocks feature improved durability, true gasket sealing and fully adjustable (emulsion bleeds, power valve channel restrictors & idle feed restrictors)
• Integrated idle bypass valve eliminates the need for holes in throttle plates and allows for proper adjustment of idle while maintaining correct throttle plate to transfer slot relationship. Helps maintain good idle control when using radical camshafts.
• Dual 30cc accelerator pumps provide the perfect amount of fuel from idle to full throttle
• Fuel bowls provide 20% more fuel capacity while controlling slosh with internal baffling
• Clear sight windows on both sides of bowls for easy and safe fuel level adjustments
• Built in drain plug in front center of bowl provides easy access to empty contents of bowl
• 8AN (o-ringed) inlet threads offer a large variety of plumbing options and can be plumbed from either side
• 4 corner idle allows you to precisely control your idle system
• Mechanical Secondaries for perfect off the line launches
• Elongated (dual pattern) mounting holes allow fitment on intakes with square flange (Holley 4150™ style) or large flange (Holley Dominator® style)
• Knurled (hand adjustable) 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. New secondary pump cam lever designed to provide positive throttle stop on secondary side
• Stainless steel adjustable secondary link. Provides choice of 1:1 or progressivesecondary throttle actuation for ultimate control of secondary opening rate
• Baseplate designed with a boss that can be consumer machined for vacuum source
• Includes notched float and jet extensions
• 100% wet-flow tested by Holley technicians to assure it arrives ready to run!

• Fuel Inlet Fitting

  Short -8AN male fuel inlet fitting (black) with -8AN o-ring threads for Ultra XP fuel bowls.

  Part# 26-143-1

  $11.36

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• Fuel Line

  Dual fuel lines for Holley 4150 Ultra XP Carburetors w -8 O-ring XP Bowls. Fuel line with single 6AN inlet, fittings with Pro-Lite 350 hose

  Part# 34-42

  $105.26

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• Fuel Inlet Fitting

  Short -8AN male fuel inlet fitting (red) with -8AN o-ring threads for 4150 Ultra XP fuel bowls.

  Part# 26-143-2

  $11.36

  Qty: 

  Add To Cart
• Fuel Line

  Dual fuel lines for Holley 4150 Ultra XP Carburetors w -8 O-ring XP Bowls. Fuel line with single 8AN inlet, fittings with Pro-Lite 350 hose

  Part# 34-43

  $127.76

  Qty: 

  Add To Cart
• Fuel Line

  Dual fuel lines for Holley 4150 Ultra XP Carburetors w -8 O-ring XP Bowls. Fuel line with dual 8AN inlet, fittings with Stainless hose

  Part# 34-44

  $146.66

  Qty: 

  Add To Cart

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