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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 Sniper EFI 550-870
SNIPER STEALTH 4150 - SHINY - Holley Sniper Stealth 4150 - Shiny
Part # 534-247 is required to complete installation.
Part TypeFuel Injection Conversion Kit£1,534.99£1,444.99 inc VAT£1,204.16 ex VAT -
Holley Sniper EFI 550-869
SNIPER QUADRAJET, GOLD - Holley Sniper EFI Quadrajet™ - Classic Gold
For marine installations, a flame arrestor is legally...
Part TypeFuel Injection Conversion Kit£1,739.99£1,625.99 inc VAT£1,354.99 ex VAT -
Holley Sniper EFI 550-870k
SNIPER STEALTH 4150 MASTER KIT, POLISHED - Holley Sniper Stealth 4150 Master Kit - Shiny
Part # 534-247 is required to complete installation.
Part TypeFuel Injection Conversion Kit£1,840.99£1,715.99 inc VAT£1,429.99 ex VAT -
Holley Sniper EFI 550-869k
SNIPER QUADRAJET, GOLD, MASTER KIT - Holley Sniper EFI Quadrajet™ Master Kit - Classic Gold
Installing in a marine setup? Go with Holley...
Part TypeFuel Injection Conversion Kit£2,045.99£1,897.00 inc VAT£1,580.83 ex VAT -
Holley Sniper EFI 550-872k
SNIPER STEALTH 4150 MASTER KIT, GOLD - Holley Sniper Stealth 4150 Master Kit - Classic Gold
Part # 534-247 is required to complete installation.
Part TypeFuel Injection Conversion Kit£1,892.99£1,760.99 inc VAT£1,467.49 ex VAT -
Holley Sniper EFI 550-872
SNIPER STEALTH 4150 - GOLD - Holley Sniper Stealth 4150 - Classic Gold
Part # 534-247 is required to complete installation.
Part TypeFuel Injection Conversion Kit£1,585.99£1,489.99 inc VAT£1,241.66 ex VAT -
Holley Sniper EFI 550-871k
SNIPER STEALTH 4150 MASTER KIT, BLACK - Holley Sniper Stealth 4150 Master Kit - Black
Part # 534-247 is required to complete installation.
Part TypeFuel Injection Conversion Kit£1,892.99£1,760.99 inc VAT£1,467.49 ex VAT -
Holley Sniper EFI 550-871
SNIPER STEALTH 4150 - BLACK - Holley Sniper Stealth 4150 - Black
Part # 534-247 is required to complete installation.
Part TypeFuel Injection Conversion Kit£1,585.99£1,489.99 inc VAT£1,241.66 ex VAT -
Holley Sniper EFI 553-194
5IN TSLCD GPS ANTENNA - Sniper EFI 5" Digital Dash GPS Antenna
CLEARANCE ITEM / ALL SALES FINAL - Replacement...
Part TypeGPS Antenna Assembly£49.00 inc VAT£40.83 ex VAT -
Holley Sniper EFI 550-877
SUPER SNIPER STEALTH 4150 8-INJ, BLACK - Holley Sniper EFI Super Sniper Stealth 1250 - Black
Part # 534-247 is required to complete installation.
Part TypeFuel Injection Conversion Kit£2,199.98£2,032.00 inc VAT£1,693.33 ex VAT -
Holley Sniper EFI 553-115
SNIPER EFI 3.5 TOUCH SCREEN LCD - Sniper EFI 3.5" Handheld Controller
Only compatible with Sniper EFI systems.
Part TypeDriver Information Display£409.99£389.99 inc VAT£324.99 ex VAT -
Holley Sniper EFI 554-200
SNIPER 2 PDM - Sniper 2 PDM
The Sniper PDM will have 100 mA or...
Part TypePower Distribution Block£199.99£187.99 inc VAT£156.66 ex VAT -
Holley Sniper EFI 556-151
Sniper Hyperspark EFI Ignition - Sniper EFI HyperSpark Ignition Box
Ignition Box for HyperSpark
Part TypeIgnition Control Module£409.99£376.00 inc VAT£313.33 ex VAT -
Holley Sniper EFI 556-150
COIL DRIVER MODULE, SNIPER EFI - Sniper EFI Coil Driver Module
Not designed to be used with Sniper EFI...
Part TypeIgnition Control Module£173.99£172.99 inc VAT£144.16 ex VAT -
Holley Sniper EFI 553-202
SNIPER 2 EFI 3.5 TOUCH SCREEN LCD - Sniper 2 EFI 3.5" Handheld Controller
Includes 3.5" Touch Screen, Mounting Sleeve, Power and...
Part TypeDriver Information Display£293.99£271.00 inc VAT£225.83 ex VAT -
Holley Sniper EFI 558-190
SNIPER 2 MAIN HARNESS FOR PDM - Sniper 2 PDM Main Harness
Not included is the Sniper 2 PDM, check...
Part TypeChassis Power Distribution Module Wiring Harness£154.00 inc VAT£128.33 ex VAT -
Holley Sniper EFI 556-153
IGNITION COIL, CANNISTER - Sniper EFI Canister Ignition Coil
Compatible with Sniper EFI Coil Driver Module (556-150).
Part TypeIgnition Coil£67.00£64.99 inc VAT£54.16 ex VAT -
Holley Sniper EFI 558-491
10 PIN HARNESS, SNIPER TBI - Sniper EFI Input/Output Harness
Input/Output Harness for Sniper EFI Systems
Part TypeAccessory Wiring Harness£73.00 inc VAT£60.83 ex VAT -
Holley Sniper EFI 558-493
SNIPER EFI TO HOLLEY DUAL SYNC HARNESS - Sniper EFI to Holley EFI Dual Sync Distributor Adapter Harness
Ignition Adapter Harness
Part TypeDistributor Wiring Harness£52.99 inc VAT£44.16 ex VAT -
Holley Sniper EFI 558-191
SNIPER 2 MAIN HARNESS W/ FUEL PUMP RELAY - Sniper 2 EFI Main Harness
For Sniper 2 Main Harness with PDM connections,...
Part TypeEngine Control Module (ECM) Wiring Harness£223.99£188.99 inc VAT£157.49 ex VAT -
Holley Sniper EFI 558-490
7 PIN MAIN HARNESS, SNIPER TBI - Sniper TBI Main Harness
Main Battery Harness with Fuse and Fuel Pump...
Part TypeEngine Control Module (ECM) Wiring Harness£173.99£172.99 inc VAT£144.16 ex VAT -
Holley Sniper EFI 558-497Part TypeAccessory Wiring Harness£49.99 inc VAT£41.66 ex VAT
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Holley Sniper EFI 565-300
Hall EFI DIST- Chevy - HyperSpark Distributor - Chevrolet SBC / BBC
This is a cast distributor gear, it is...
Part TypeDistributor£472.00£433.00 inc VAT£360.83 ex VAT -
Holley Sniper EFI 565-300bk
Hall EFI Dist- Chevy - HyperSpark Distributor - Chevrolet SBC / BBC
This is a cast distributor gear, it is...
Part TypeDistributor£472.00£433.00 inc VAT£360.83 ex VAT -
Holley Sniper EFI 565-301
Hall EFI DIST - Ford (260/289/302) - HyperSpark Distributor - Ford Small Block 260 / 289 / 302
This is a cast distributor gear, it is...
Part TypeDistributor£472.00£433.00 inc VAT£360.83 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.



