600 CFM E85 HP ULTRA GREY XP w/BLACK

Description

Xtreme Performance – Holley
Ultra XP™ carburetors! Ultra
XP carbs are 38% lighter than
our original HP, 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)
• 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)
• Integrate
  d 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
• .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
• 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!