Xtreme Performance - Holley Ultra XP(TM) 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! Theyre available in our all-new Hard Core Gray(TM) hard coat anodized finish with Black(TM) billet for improved corrosion protection. Theyre also available in natural tumble-polished aluminum with your choice of Black(TM) or Red(TM) 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!

• Aluminum Construction - Saves 4.5 lbs. - 38% Weight Savings
• Hard Core Gray w/Blk Billet Alum. Metering Block/Booster Inserts
• Designed For Use On Drag Car/Circle Track/High HP Engines
• Contoured Venturi Inlet Offers Balanced Airflow For Increased HP
• Air Bleeds Moved Outward To Allow Smoother Transition Of Airflow
• Metering Blocks Feature Improved Durability/True Gasket Sealing
• Dual 50cc Accelerator Pumps Provides Perfect Amount of Fuel
• Fuel Bowls Provide 20% More Fuel Capacity
• Clear Sight Window On Both Sides For Easy/Safe Fuel Level Adjs.
• 8AN Inlet Threads Offer Variety Of Plumbing Options
• 0.150in. Stainless Needles/Seats To Control The Demand of E-85
• 100% Wet-Flow Tested To Assure It Arrives Ready To Run!

Additional Attributes:

• GTIN: 00090127052068
• Barrel: Four
• Billet Color: Hard Core Gray with Black
• Booster Type: Down Leg
• Carburetor Type: 4150
• CFM: 750
• Choke: None
• Emission: Without EGR
• Finish: Hard Core Gray
• Flange: Square Bore
• Fuel Inlet: Dual
• Fuel Type: Methanol
• Material: Aluminum
• Primary Main Jet: 152
• Secondary Main Jet: 152
• Secondary Pump Nozzle Size: 50
• Secondary Type: Mechanical
• Supercharged Application: No
• Throttle Bore: 1.688 in.
• Type: Automotive
• Usage: Racing
• Venturii Size: 1.375 in.
• WARNING CA Proposition 65: No

Extened Information:

• Emissions : Electronically Announced
• Life Cycle Status: Available To Order

Packaging:

• Quantity of Each:
• Package UOM:
• Dimension: 14.2500 x 12.3800 x 9.1300 inches