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HOLLEY 4150 ALUM ULTRA XP 750 CFM CIRCLE TRACK

HOLLEY 4150 ALUM ULTRA XP 750 CFM CIRCLE TRACK

Original price was: £1,885.64.Current price is: £1,791.36. Inc. VAT

SKU: HOL0-80813BKX Categories: , , Brand:

Description

Part Number: 0-80813BKX

Holley Ultra XP 750 CFM Circle Track Carburetor

Engineered for competitive motorsport applications, the Holley Ultra XP 750 CFM Circle Track Carburetor delivers maximum airflow, precise fuel metering, and significant weight savings for race-winning performance.

Key Features & Performance Highlights

  • ☑ Lightweight All-Aluminum Construction: Provides a 38% weight reduction (saving up to 4.5 lbs) over traditional zinc carburetors.
  • ☑ Black Anodized Billet Components: Features high-strength billet aluminum metering blocks and base plate with a durable black anodized finish.
  • ☑ Integrated Idle Bypass Valve: Allows precise idle speed adjustment without modifying throttle plate position relative to transfer slots.
  • ☑ Circle Track Calibrated: Designed for high-rpm racing demands with mechanical secondaries, down-leg boosters, and dual 0.031″ accelerator pump nozzles.
  • ☑ Dual Fuel Inlets: Includes -8AN O-ringed fuel inlet threads with standard -8AN to -6AN male adapter fittings.

Technical Specifications

Brand Holley
Manufacturer Part Number 0-80813BKX
Model Series 4150 Ultra XP Circle Track
Airflow Rating 750 CFM
Number of Barrels 4-Barrel
Mounting Flange Square Bore
Secondary Type Mechanical Secondary
Choke Type None / No Choke
Main Body Finish Tumble Polished Aluminum
Metering Block & Base Plate Black Anodized Billet Aluminum
Fuel Inlet Distance 9-3/4″ (Dual Inlet, -8AN O-ring thread)
Primary & Secondary Jets 76 / 76
Power Valve 6.5 Standard

What’s Included in the Box

  • (1) Holley 4150 Ultra XP 750 CFM Circle Track Carburetor (PN 0-80813BKX)
  • (2) -8AN O-ring to -6AN Male Fuel Line Adapter Fittings
  • (1) -8AN Port Plug
  • Flange Mounting Gaskets and Installation Hardware

As an authorized Holley motorsport retailer in the UK, JP Racing ensures you receive genuine, competition-grade components backed by expert technical advice. Every Holley product purchased through JP Racing benefits from fast UK dispatch and dedicated customer support to keep your race car at the front of the grid.

Frequently Asked Questions

The Holley Ultra XP 0-80813BKX is calibrated specifically for off-road circle track motorsport competition. It features mechanical secondaries and has no choke, making it optimized for high-RPM race engines rather than daily street driving.

The all-aluminum design reduces overall weight by approximately 38% (saving nearly 4.5 lbs compared to zinc carburetors). Additionally, the billet aluminum metering blocks and base plate provide exceptional dimensional stability and precision tuning under race conditions.

The carburetor is equipped with -8AN O-ring inlet threads and standardly includes -8AN O-ring to -6AN male adapters along with a -8AN plug, ensuring easy integration with standard high-flow motorsport fuel lines.

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