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Holley 650CFM Ultra XP Carburetor 0-80802BKX

Holley 650CFM Ultra XP Carburetor 0-80802BKX
Holley 650CFM Ultra XP Carburetor 0-80802BKXHolley 650CFM Ultra XP Carburetor 0-80802BKXHolley 650CFM Ultra XP Carburetor 0-80802BKXHolley 650CFM Ultra XP Carburetor 0-80802BKXHolley 650CFM Ultra XP Carburetor 0-80802BKXHolley 650CFM Ultra XP Carburetor 0-80802BKX
$1,740.99 ea
NEWARRIVING SOONEstimated Ship Date 03/26/2024 (If Ordered Today)6 Available from HOLLEY PERFORMANCE PRODUCTS as of 03/02/2024
Model: 3990492
STANDARD
DELIVERY
Xtreme Performance - Holley Ultra XP™ carburetors! Ultra XP carbs are up to 38% lighter than our traditional race carbs, have fuel capacity that is 20% greater and 30 other new features! They're available in our all-new Hard Core Gray™ hard coat anodized finish with Black™ billet for improved corrosion protection. They're also available in natural tumble-polished aluminum with your choice of Black™ or Red™ metering blocks and base plate. The Aluminum Ultra XP comes in 600, 650, 750, 850, and True 950-CFM. Holley Ultra XP carburetors offer new features such as an integrated idle bypass valve that allows for idle adjustments while maintaining the correct throttle plate to transfer slot relationship, high capacity fuel bowls which feature 20% more fuel capacity to eliminate starvation, integrated fuel shelf to minimize fuel aeration and internal baffling to control fuel slosh. Other features include all aluminum construction, fully tunable billet metering blocks, billet base plate, adjustable secondary linkage and knurled (hand adjustable) curb idle screws. Holley Ultra XP carburetors are the ultimate in square bore race carburetors!
Features:
  • Aluminum Construction (saves 4.5 lbs - 38% weight savings)
  • Shiny with black 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)
  • 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!
This carburetor was designed with a dual mounting pattern, so that it can be installed on a manifold machined for a 4150 or 4500 series carburetor.
Installation Notes:
This carburetor was designed with a dual mounting pattern, so that it can be installed on a manifold machined for a 4150 or 4500 series carburetor.

About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

Downloads:

Download Name File Size
techlibrary_carb_numerical_listing.pdf611.91KB
199r10565-1rev.pdf703.71KB

Videos:

Specifications:

Barrels 4
Billet Color Shiny with Black Billet
Booster Down Leg
Booster Type Down Leg
Carburetor Use Professional Race
CFM 650
Choke None
Circuit 2
Condition NEW
Emission Code 3
Finish Shiny
Fuel Gasoline
Fuel Inlet Dual
Marine Use No
Material Aluminum
Model 4150
Part Type Carburetor
Primary Main Jet 70
Primary Power Valve 6.5
Primary Pump Nozzle Size 32
Product Type Carburetor
Proposition 65 www.P65Warnings.ca.gov
Secondaries Mechanical
Secondary Main Jet 70
Secondary Pump Nozzle Size 32
Supercharged Application No
Throttle Bore 1.688 inch
Venturii Size 1.250 inch
Warranty Limited 90 Day

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Holley 650CFM Ultra XP Carburetor 0-80802BKX:
Classic Nova 2024