Holley Ultra XP Carburetor
      
  SKU
              HTPD-0-80845HBX
          List price
              $1,739.94
          Price
              $1,449.95
          Description
950 CFM - 4150 - Mechanical Secondaries - Hard Core Gray - E85
Features
              - 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
- E85 specific calibration
- 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.
- 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
- .130" stainless needle & seats to control the demand of E-85
- 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
- Throttle shaft is slabbed and undercut for improved airflow
- 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
- Stainless steel throttle plates
- Includes notched float and jet extensions
- 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
Specs
Brand
              HOLLEY
          Category
          Carburetor
              Specs
          CFM: 950
          Fuel: E85
          Brand: Holley
          Choke: None
          Model: 4150
          Finish: Hard Core Gray
          Barrels: 4
          Booster: Downleg
          Warning: California Proposition 65
          Category: Air and Fuel Delivery
          Material: Aluminum
          Warranty: Manufacturer's Limited 90 Day Warranty
          Condition: New
          Fuel Type: E85
          part type: Carburetor
          Body Color: Hard Core Gray
          Fuel Inlet: Dual
          Grade Type: Performance
          Marine Use: No
          Body Finish: E-Coated
          Flange Type: Square/4150
          Secondaries: Mechanical
          Billet Color: Hard Core Gray with Black
          Product Type: Carburetor
          Sub Category: Carburetion
          Emission Code: 3
          Throttle Bore: 1.750 inch
          Venturii Size: 1.600 inch
          Booster Design: Downleg
          Carburetor Use: Professional Race
          Barrel Quantity: 4
          Marine Approved: No
          Spacer Included: No
          Linkage Attached: Yes
          Primary Main Jet: 96
          Secondary Main Jet: 106
          Carburetor Material: Aluminum
          Idle Air Bleed Size: 67
          Primary Power Valve: 5.5
          High Speed Air Bleed: 24
          Primary Jet Diameter: 96
          Mounting Hole Quantity: 4
          Primary Pump Nozzle Size: 42
          Supercharged Application: No
          Secondary Pump Nozzle Size: 50
          Cubic Feet Per Minute Rating: 950
              PDFs
PDFs
              68b196da0e923.pdf
  (704.75 KB)
           
           
         
         
         
         
         
         
         
         
         
         
         
         
         
 
 
 
 
 
 
 
 
 
 
 
 
