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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 126-47-10

    Replaceable Air Bleed - Size 47

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • Sold out
    Out of Stock
    Photo - Primary
    Holley 126-45-10

    Replaceable Air Bleed - Size 45

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 126-43-10

    Replaceable Air Bleed - Size 43

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • Sold out
    Out of Stock
    Photo - Primary
    Holley 126-40-10

    Replaceable Air Bleed - Size 40

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 126-36-10

    Replaceable Air Bleed - Size 36

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 126-35-10

    Replaceable Air Bleed - Size 35

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 126-34-10

    Replaceable Air Bleed - Size 34

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 126-33-10

    Replaceable Air Bleed - Size 33

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 126-32-10

    Replaceable Air Bleed - Size 32

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 126-31-10

    Replaceable Air Bleed - Size 31

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £28.99£28.00 inc VAT
    £23.33 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 126-30-10

    Replaceable Air Bleed - Size 30

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 126-29-10

    Replaceable Air Bleed - Size 29

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • Sold out
    Out of Stock
    Photo - Primary
    Holley 126-28-10

    Replaceable Air Bleed - Size 28

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 126-26-10

    Replaceable Air Bleed - Size 26

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 126-25-10

    Replaceable Air Bleed - Size 25

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 126-24-10

    Replaceable Air Bleed - Size 24

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • Sold out
    Out of Stock
    Photo - Primary
    Holley 126-23-10

    Replaceable Air Bleed - Size 23

    Fits All Holley Model 4150 HP™ & 4500...

    Part TypeCarburetor Air Bleed Tuning Kit
    £31.00£28.99 inc VAT
    £24.16 ex VAT
  • ✓ In Stock
    Photo - out of package
    Holley 12-600

    65 GPH HP In-line Fuel Pump

    These pumps do not have an internal bypass....

    Part TypeElectric Fuel Pump
    £490.00£403.99 inc VAT
    £336.66 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 125-95

    Single-Stage Power Valve

    Single-Stage Power Valve Standard Flow 9.5 in. Hg

    Part TypeCarburetor Power Valve
    £22.00£19.99 inc VAT
    £16.66 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 125-75

    Single-Stage Power Valve

    Single-Stage Power Valve Standard Flow 7.5 in. Hg

    Part TypeCarburetor Power Valve
    £19.99£17.99 inc VAT
    £14.99 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 125-55

    Single-Stage Power Valve

    Single-Stage Power Valve Standard Flow 5.5 in. Hg

    Part TypeCarburetor Power Valve
    £19.99£19.00 inc VAT
    £15.83 ex VAT
  • Sold out
    Out of Stock
    Photo - Primary
    Holley 125-500

    Power Valve Check Ball Kit

    Power Valve Check Ball Kit

    Part TypeCarburetor Power Valve Protector
    £34.99£32.99 inc VAT
    £27.49 ex VAT
  • Sold out
    Out of Stock
    Photo - Primary
    Holley 125-50

    Single-Stage Power Valve

    Single-Stage Power Valve Standard Flow 5.0 in. High

    Part TypeCarburetor Power Valve
    £22.00£19.99 inc VAT
    £16.66 ex VAT
  • ✓ In Stock
    Photo - Primary
    Holley 125-45

    Single-Stage Power Valve

    Single-Stage Power Valve Standard Flow 4.5 in. Hg

    Part TypeCarburetor Power Valve
    £19.00£16.99 inc VAT
    £14.16 ex VAT
  • Sold out
    Out of Stock
    Photo - Primary
    Holley 125-35

    Single-Stage Power Valve

    Single-Stage Power Valve Standard Flow 3.5 in. Hg

    Part TypeCarburetor Power Valve
    £19.00£16.99 inc VAT
    £14.16 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.