Holley Ultra XP 2bbl. Carburetor
The original Holley 0-4412 has powered thousands of racers to the winners' circle! How do you make it better? Add the proven design elements of the popular Ultra series for more tunability, more durability, more weight savings, and more features! The Ultra XP 2bbl carburetors feature all aluminum construction for nearly 50% weight savings over their zinc counterparts, contoured venturii inlet for un-obstructed airflow, screw in air bleeds for easy fine tuning, black anodized fully adjustable billet aluminum metering block, and baseplate, high capacity to eliminate starvation, integrated fuel shelf to minimize fuel aeration, and internal baffling to control fuel slosh and a centered air cleaner flange for improved airflow and performance. Other notable features include wedged floats, knurled hand adjustable curb idle screw, and down leg boosters. Ultra XP 2bbl carburetors are approved for use in NASCAR® Mid-West/West Coast Late Model Divisions and utilize the same venturii and throttle bore dimensions of the classic 4412 2bbl carburetor. The Ultra XP 2bbl will outperform any production 2bbl available.
Part Type: Carburetor
Model: Ultra XP
Application: Universal - Approved for use in NASCAR® Mid-West/West Coast Late Model Divisions
Fuel Type: Gasoline
Number of Barrels: 2
Choke Type: None
Fuel Inlet: Dual
Fuel Inlet Fitting Size: -8 O-Ring Inlet Threads (comes with an extended -8 O-Ring to -8AN male adapter and -8 plug)
Secondary Type: NA
Throttle Linkage Type: Universal
Ford Auto Trans Kickdown: No
Main Body: Aluminum
Primary Venturii Diameter: 1-3/8"
Secondary Venturii Diameter: NA
Base Plate: Integral with Main Body
Base Plate Pattern: 5.16" x 3.46"
Primary Throttle Bore Diameter: 1-11/16"
Secondary Throttle Bore Diameter: NA
Fuel Bowls: Aluminum
Externally Adjustable Floats: Yes
Fuel Bowl Sight Windows: Yes
Primary Main Jets: 73
Secondary Main Jets: NA
Metering Rods: NA
Step-Up Spring: NA
Intermediate Bleed: NA
Power Valve: 5.0" Hg
Needle & Seat: .110" Viton
Accelerator Pump Nozzle Diameter: .028”
Finish: Hard Core Gray
Vacuum Port - Timed (Spark): None
Vacuum Port - Full Vacuum: None
PCV Port: None
Manufacturer's Part Number: 0-4412HBX
Weight: 13.0 lbs.
Warranty: Holley Performance Products warrants its new performance products to be free from defects in material and workmanship for a period of 90 days from date of purchase. Holleys Limited Warranty specifically does not apply to products which have been (a) modified or altered in any way; (b) subjected to adverse conditions such as misuse, neglect, accident, improper installation or adjustment, dirt or other contaminants, water, corrosion or faulty repair; or (c) used in other than those applications recommended by Holley Performance Products. Holley also does not warrant, and disclaims all liability for products used in racing activities and/or applications other than those specifically recommended in the current Holley catalog. This Limited Warranty is extended to the original consumer only. This Limited Warranty is not assignable or otherwise transferable. There are no warranties which extend beyond those stated herein. Holley offers no other warranties, express or implied beyond this Limited Warranty. In the event of an alleged defect in material or workmanship, Holley's responsibility is strictly limited to repair or replace the defective product. Holley has no other obligation express or implied. Final warranty determination will be in the sole discretion of Holley. Holley shall not be responsible for (a) actual or alleged labor, transportation or other incidental charges; or (b) actual or alleged consequential or other damages incurred by use of product of Holley Performance Products.
Quantity: Sold as Each