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Holley

Holley UK – Carburetors, EFI Systems & Performance Parts Holley is a legendary name in the world of performance. Since 1903, Holley has been at the forefront of fuelling technology, powering everything from classic hot rods to modern race cars....

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Holley
  • ✓ In Stock
    Photo - Primary
    Holley 12-865

    4 Port VR Series Fuel Pressure Regulator

    Regulator is compatible with Diesel #1 and Diesel...

    Part TypeFuel Pressure Regulator
    £436.99£385.00 inc VAT
    £320.83 ex VAT
  • Sold out
    Out of Stock
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    Holley 12-852

    2 Port VR Series Fuel Pressure Regulator

    Regulator is compatible with Diesel #1 and Diesel...

    Part TypeFuel Pressure Regulator
    £425.99£376.00 inc VAT
    £313.33 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 12-848

    Dominator Billet EFI By Pass Fuel Pressure Regulator

    Hot Street/Race EFI Applications Two Port Adjustable from...

    Part TypeFuel Pressure Regulator
    £298.00£262.00 inc VAT
    £218.33 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 12-847

    Dominator Billet Carbureted By Pass Fuel Pressure Regulator

    Regulator is compatible with Diesel #1 and Diesel...

    Part TypeFuel Pressure Regulator
    £307.99£271.00 inc VAT
    £225.83 ex VAT
  • Sold out
    Out of Stock
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    Holley 12-846

    HP Billet EFI By Pass Fuel Pressure Regulator

    Regulator is compatible with Diesel #1 and Diesel...

    Part TypeFuel Pressure Regulator
    £283.99£233.99 inc VAT
    £194.99 ex VAT
  • ✓ In Stock
    Photo - out of package
    Holley 12-845

    HP Billet Carbureted By Pass Fuel Pressure Regulator

    Regulator is compatible with Diesel #1 and Diesel...

    Part TypeFuel Pressure Regulator
    £298.00£244.99 inc VAT
    £204.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 12-843

    HP Billet Carbureted Fuel Pressure Regulator

    Regulator is compatible with Diesel #1 and Diesel...

    Part TypeFuel Pressure Regulator
    £239.99£211.99 inc VAT
    £176.66 ex VAT
  • ✓ In Stock
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    Holley 12-842

    HP Billet Carbureted By Pass w/ Idle Bleed Fuel Pressure Regulator

    Street/Strip Carbureted Applications Two Port Adjustable from 4.5...

    Part TypeFuel Pressure Regulator
    £205.00£178.00 inc VAT
    £148.33 ex VAT
  • Sold out
    Out of Stock
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    Holley 12-841kit

    Holley Billet Bypass Fuel Pressure Regulator Kit

    4.5-9 Psi - Fittings and Gauge Included

    Part TypeFuel Pressure Regulator
    £380.99£358.99 inc VAT
    £299.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 12-841

    HP Billet Carbureted By Pass Fuel Pressure Regulator

    Regulator is compatible with Diesel #1 and Diesel...

    Part TypeFuel Pressure Regulator
    £172.00£163.00 inc VAT
    £135.83 ex VAT
  • Sold out
    Out of Stock
    Photo - Primary
    Holley 12-840kit

    Holley Billet Bypass Fuel Pressure Regulator Kit

    4.5-9 Psi - Fittings and Gauge Included

    Part TypeFuel Pressure Regulator
    £358.99£337.99 inc VAT
    £281.66 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 12-840

    HP Billet Carbureted Fuel Pressure Regulator

    Regulator is compatible with Diesel #1 and Diesel...

    Part TypeFuel Pressure Regulator
    £163.00£148.00 inc VAT
    £123.33 ex VAT
  • Sold out
    Out of Stock
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    Holley 12-835

    80 GPH Mechanical Fuel Pump

    Street Performance Carbureted Applications Fits Big Block Chevy...

    Part TypeMechanical Fuel Pump
    £157.00 inc VAT
    £130.83 ex VAT
  • ✓ In Stock
    Photo - out of package
    Holley 12-834

    80 GPH Mechanical Fuel Pump

    Street Performance Carbureted Applications Fits Small Block Chevy...

    Part TypeMechanical Fuel Pump
    £157.00 inc VAT
    £130.83 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 12-833

    80 GPH Mechanical Fuel Pump

    Street Performance Carbureted Applications Fits Ford 289/302/351W V8s...

    Part TypeMechanical Fuel Pump
    £152.99 inc VAT
    £127.49 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 12-828

    Regulator Rebuild Kit

    Fits 12-879 and 12-880 Fuel Pressure Regulators

    Part TypeFuel Pressure Regulator Service Kit
    £65.99£61.99 inc VAT
    £51.66 ex VAT
  • ✓ In Stock
    Holley 12-827 primary image
    Holley 12-827

    Regulator Rebuild Kit

    Fits 12-848, and 12848ERL Fuel Pressure Regulators

    Part TypeFuel Pressure Regulator Service Kit
    £61.99£59.99 inc VAT
    £49.99 ex VAT
  • ✓ In Stock
    Holley 12-826 primary image
    Holley 12-826

    Regulator Rebuild Kit

    Fits 12-846, and 12846ERL Fuel Pressure Regulators

    Part TypeFuel Pressure Regulator Service Kit
    £59.99£58.00 inc VAT
    £48.33 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 12-824

    Regulator Rebuild Kit

    Fits 12-843 Fuel Pressure Regulators

    Part TypeFuel Pressure Regulator Service Kit
    £52.00£47.99 inc VAT
    £39.99 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 12-823

    Regulator Rebuild Kit

    Fits 12-841,12-842, 12-881, and 12-887 Fuel Pressure Regulators

    Part TypeFuel Pressure Regulator Service Kit
    £47.99£44.99 inc VAT
    £37.49 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 12-822

    Regulator Rebuild Kit

    Fits 12-840 Fuel Pressure Regulators

    Part TypeFuel Pressure Regulator Service Kit
    £52.00£47.99 inc VAT
    £39.99 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 12-821

    Gerotor Replacement Kit

    Contaminants or normal wear of your pump's gerotor...

    Part TypeElectric Fuel Pump Repair Kit
    £175.00£155.99 inc VAT
    £129.99 ex VAT
  • Sold out
    Out of Stock
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    Holley 12-820

    Fuel Pump Check Valve Kit

    Forgot to install a fuel filter between the...

    Part TypeFuel Pump Check Valve
    £52.00£47.99 inc VAT
    £39.99 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 12-818

    Regulator Diaphragm Repair Kit

    Fits Holley 12-803BP Fuel Pressure Regulator

    Part TypeFuel Pressure Regulator Service Kit
    £58.99£55.00 inc VAT
    £45.83 ex VAT
  • Sold out
    Out of Stock
    Photo - Primary
    Holley 12-816

    Fuel Pump Check Valve Kit

    Fits Holley 12-815-1 "Black" Electric Fuel Pump

    Part TypeFuel Pump Check Valve
    £76.00£70.99 inc VAT
    £59.16 ex VAT

Holley UK – Carburetors, EFI Systems & Performance Parts

Holley is a legendary name in the world of performance. Since 1903, Holley has been at the forefront of fuelling technology, powering everything from classic hot rods to modern race cars. Known for their carburetors, EFI systems, fuel pumps, and complete performance solutions, Holley remains the first choice for enthusiasts worldwide.

The Holley Legacy

Holley carburetors became an icon in American muscle cars and motorsport, appearing on millions of vehicles over the decades. Today, Holley’s reach extends far beyond carburetion, with a massive catalogue that includes EFI systems, intake manifolds, exhaust solutions, ignition systems, and even full fuel delivery kits.

Why Enthusiasts Choose Holley

  • Unmatched History: Over 100 years of performance innovation.
  • Complete Solutions: Everything from fuelling to exhaust under one brand family.
  • Motorsport Proven: Trusted in drag racing, circle track, and street performance applications.
  • Modern Technology: Cutting-edge EFI systems that bring classic builds into the future.

Popular Holley Products

  • Holley 4150 & 4160 Carburetors
  • Sniper EFI Conversion Kits
  • Holley Terminator X Engine Management
  • Fuel Pumps & Regulators
  • Holley Intake Manifolds

Holley in the UK

Billy’s Speed Shop brings Holley performance parts to the UK, eliminating the cost and hassle of importing. Whether you’re restoring a classic V8, tuning a modern LS swap, or building a drag car, Holley offers the solutions you need – available now with fast UK delivery.

Fuel your project with Holley UK performance parts – order today at Billy’s Speed Shop.