BRAND NEW HOLLEY ULTRA XP CARBURETOR, 600 CFM, SHINY WITH BLACK BILLET FINISH, NO CHOKE, MECHANICAL SECONDARIES, 4150, COMPATIBLE WITH GASOLINE
FEATURES INCLUDE 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 & INTERNAL BAFFLING TO CONTROL FUEL SLOSH. INCLUDES NOTCHED FLOAT & JET EXTENSIONS. 100% WET-FLOW TESTED.
OTHER FEATURES INCLUDE ALL ALUMINUM CONSTRUCTION, FULLY TUNABLE BILLET METERING BLOCKS, BILLET BASE PLATE, ADJUSTABLE SECONDARY LINKAGE & KNURLED (HAND ADJUSTABLE) CURB IDLE SCREWS. HOLLEY ULTRA XP CARBURETORS ARE THE ULTIMATE IN SQUARE BORE RACE CARBURETORS!
NOTE: THIS CARBURETOR HAS SQUARE BORE FLANGE BOLT PATTERN. IT REPLACES HOLLEY, EDELBROCK, CARTER AFB & AUTOLITE STYLE CARBURETORS WITH 5 3/16" X 5 5/8" BOLT PATTERN. IF YOU HAVE A SPREADBORE STYLE INTAKE MANIFOLD, YOU NEED AN ADAPTER TO INSTALL THIS CARBURETOR, SIMILAR TO MR. GASKET #1932.
FEATURES:
ALUMINUM CONSTRUCTION (SAVES 4.5 LBS - 38% WEIGHT SAVINGS)
SHINY WITH BLACK ANODIZED BILLET ALUMINUM METERING BLOCKS & BASE PLATE
DESIGNED FOR USE ON DRAG RACE, CIRCLE TRACK, OR ANY HIGH HP ENGINES
CONTOURED VENTURRI INLET OFFERS BALANCED AIRFLOW FOR INCREASED HP
AIR BLEEDS MOVED OUTWARD TO ALLOW A SMOOTHER TRANSITION OF AIRFLOW FROM THE TOP OF THE CARBURETOR INTO THE VENTURII
INTEGRATED IDLE BYPASS VALVE ELIMINATES THE NEED FOR HOLES IN THROTTLE PLATES & 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 & 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 & CAN BE PLUMBED FROM EITHER SIDE
4 CORNER IDLE
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 & 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 PROGRESSIVE SECONDARY THROTTLE ACTUATION
BASEPLATE DESIGNED WITH A BOSS THAT CAN BE CONSUMER MACHINED FOR VACUUM SOURCE
INCLUDES NOTCHED FLOAT & JET EXTENSIONS
100% WET-FLOW TESTED
SPECS:
BARRELS: 4
BILLET COLOR: SHINY WITH BLACK BILLET
BOOSTER: DOWN LEG
CARBURETOR USE: PROFESSIONAL RACE
CFM: 600
CHOKE: NONE
CIRCUIT: 2
FUEL: GASOLINE
FUEL INLET: DUAL
MATERIAL: ALUMINUM
MODEL: 4150
PRIMARY MAIN JET: 68
PRIMARY POWER VALVE: 6.5
PRIMARY PUMP NOZZLE SIZE: 32
PRODUCT TYPE: CARBURETOR
SECONDARIES: MECHANICAL
SECONDARY MAIN JET: 68
SECONDARY PUMP NOZZLE SIZE: 32
SUPERCHARGED APPLICATION: NO
THROTTLE BORE: 1.563"
VENTURII SIZE: 1.250"
YOU CAN VIEW AND DOWNLOAD THE COMPLETE ASSEMBLY INSTRUCTION BOOKLETS FOR THIS CARBURETOR HERE.
