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1237 Holley SUPER SNIPER 1250 EFI - 8 Injectors Universal Application

Holley Sniper

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1237 Holley SUPER SNIPER 1250 EFI - 8 Injectors Universal Application

HOLLEY SUPER SNIPER 1250 EFI SELF-TUNING KIT - #550-512 POLISHED FINISH, 550-513 Black finish, 550-517 gold finish

**NOTE:  AVAILABLE NOW!!!  Very limited quantities available - may be back-ordered if sold out**

Holley just brought EFI within range! Introducing Sniper EFI! It’s economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. Put an end to cold start issues, hesitations, vapor lock, and flooding. STEVE MORRIS ENGINES has spent a bit of time with this system in a boosted application, and will make a special version available with our initial base calibration specifically for your application!


  • Bolt on carburetor replacement (designed to fit single & dual carb manifolds)
  • Throttle body mounted ECU – no extra boxes to mount
  • Supports up to 1250hp (8 injector version)
  • 4 wire vehicle connection (Battery +, Battery - , Switched Ignition & RPM)
  • Integrated fuel pressure regulator
  • Integrated ignition timing control & coil driver
  • Color touchscreen for setup and gauge views
  • Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • Available in base & master kits (Master kits include complete fuel system: fuel pump, filters, feed and return hose and all fittings including fuel tank return line bulkhead fitting.)
  • The included Wideband Oxygen Sensor provides real-time Fuel Map Learn!

Now Testing Sniper Operation before Shipment with all units. There will be a slight increase in pricing but will guaranty that your Sniper is working.


When ordering this EFI system, please make sure you have the proper fuel pump, boost-referenced pressure regulator, carb hat, etc.  In the pull-down menu below, we recommend the HOLLEY regulator and fuel pump as seen here:

VR1 Electric Fuel Pump w/Controller 130PSI

Steve Morris 4150 PRO Hat


Add SME Boosted calibration? MUST SHIP FROM SME:
Add Second Calibration?:
Add complete fuel system with pump, reg, filter and fittings.:
Add 4150 Carb Hat?:
Add correct regulator only for EFI?:
Add Fuel Pump Only?:

Engine Type (SBC, BBC, etc)? *

Engine Displacement? *

MAX Engine RPM? *

Camshaft details *

Do you want the SNIPER to control engine timing? (MUST use MSD box) *

What power-adder will you be using? *

Max boost? *

Part #: 1237-1


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