New from Holley - the Sniper EFI 2300 2-barrel system. This system is designed to be a bolt-on carburetor replacement that’s perfect for anything with a 2300-style flange. See more details below.

Official Release:

Holley/MSD is pleased to announce the release of their Sniper EFI 2300 2-barrel (2BBL) system, developed specifically for vehicles that came standard with a 2300 2BBL Holley carburetor. It is a bolt-on carburetor replacement that’s perfect for anything with a 2300-style flange, including the classic Mustangs, Fairlanes, Galaxies, Falcons, Comets, F100s, Javelins, Rebels, Thunderbirds, and Cougars of the ’60s and ’70s.

Priced to provide all the benefits of EFI and save you money to finish or upgrade any other aspect of your ride, it easily adapts to a square-flange or Quadrajet-flange 4-barrel intake with the addition of a Mr. Gasket adapter (part number 1937MRG, 1933, or 1929MRG). The Sniper EFI 2300 2-barrel system easily accommodates up to 350 horsepower, and with the throttle-body-mounted ECU, there are no extra boxes to mount and absolutely no fabrication required. Installation doesn’t get any easier – just four wiring connections are required: battery positive, battery negative, switched ignition, and RPM. A calibration wizard takes care of everything, and no laptop is required – just answer a few questions about your engine, and the calibration wizard creates the base map and starts tuning on its own.

The Sniper EFI 2-barrel system puts an end to cold-start issues, hesitation, vapor lock, and flooding. A Master Kit is available that includes everything for a complete fuel system – 20 feet of 3/8-inch Earl’s Vapor Guard fuel hose, an 80 GPH in-line universal electric fuel pump (part number 12-920), fuel filters, all the necessary hardware, and a bulkhead fitting to return fuel into the tank.


  • Bolt on 2300 Flange Carburetor Replacement
  • Supports up to 350HP with Two 100lb/hr Injectors
  • Equipped with C4 / C6 Ford transmission kickdown lever as well as TH350, 400 and 700R4 provisions
  • Accepts many common 5 1/8” OEM or aftermarket air cleaner assemblies
  • Throttle body mounted ECU – no extra boxes to mount
  • Integrated ignition timing control
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • Simple 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!
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
  • OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service.
  • Included clamp-on oxygen sensor kit for 2.25″ exhaust ensures a leak free oxygen sensor installation, with Stainless Steel T
  • Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
  • Sniper EFI Software free to download which allows for realtime tuning
  • Printable throttle body flange template included
  • Patent Pending