Overview

Holley Sniper 2 EFI 650 HP Base Fuel Injection Systems

Holley Sniper 2 EFI Base Fuel Injection Systems are self-tuning, easy-to-install, EFI conversions for 4-barrel (4150 flange) style carburetors. They took everything that they learned from the original Sniper EFI system and added new features that will make your EFI conversion more simple, reliable, and modern. Like all Sniper EFI systems, Sniper 2 is designed to work with the Sniper Ecosystem that includes Hyperspark ignition, complete fuel systems, multiple user interfaces/dash displays, and more.

Make your classic drive like a modern fuel-injected vehicle, with easy cold starts, smooth drivability, and improved fuel economy! Sniper 2 is designed to be installed at home in your garage with limited tools and the support of Holley's comprehensive installation manual and videos. The user-friendly setup wizard allows you to answer a few simple questions about your engine—and the system will begin self-tuning with no laptop or tuning required. If you're looking for a high-performance fuel injection system that delivers power, efficiency, and ease of use, look no further than the Sniper 2 EFI.

Main features:
* Only 4 wiring connections required: Battery+, Battery-, Switched Ignition, and RPM
* Innovative clamping system allows you to locate the module anywhere in the tank beside your existing sending unit and can be rotated 360 degrees for easier clocking.
* Main harness includes plug-and-play HyperSpark distributor support for integrated timing control, making your ignition setup hassle-free
* Wide variety of tuning and gauge display options: from a 3.5 in. full-color LCD hand-held, 5 in. digital dash, or the Bluetooth dongle, which allows you to connect either an iOS or Android based cell phone to your Sniper 2
* Female -6 AN O-ring fittings
* Overall height is only 3.280 in.
* Supports up to 650 hp naturally aspirated or 575 hp on boost with four 100 lbs.-hr. injectors
* For applications using a vehicle specific EFI conversion tank and fuel pump, or already having a fuel system capable of the required 55-65 psi, these systems are offered without a pump and fuel lines
* Next generation ECU features improved RF noise and interference resistance (stands up to old car wiring, noisy alternators, faulty plug wires)
* Redesigned throttle shaft and plate geometry for a smoother throttle feel
* Integrated transmission kickdown provisions for GM TH350/400, 200-4R/700R4 and Ford C4/C6 applications
* "Hidden Harness" wiring exit from the rear of throttle body for a clean appearance
* Inputs and outputs consist of: 2x ground inputs, 2x ground outputs, 1x TPS output (0-5 V), and 1x tach output
* Redesigned injector connector for improved reliability
* Onboard contactless magnetic TPS sensor ensures an accurate TPS reading
* Next generation mil-spec style M8 positive lock connector for CAN1 and CAN2 provides the latest in CAN bus technology for a simple yet robust connection
* Cast-in fuel crossover from the primary to secondary fuel rail
* The included Bosch LSU 4.9 wideband oxygen sensor provides real-time fuel map learning
* Included clamp-on oxygen sensor kit ensures a leak-free oxygen sensor install with stainless steel T-bolt clamps and a stainless steel weldable oxygen sensor flange
* Sniper 2 throttle bodies are serialized, which provides an improved experience in the event of any unit needing to be inspected

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