Sniper 2 EFI 4BBL Self Tuning System with PDM Black 800 cfm 4 Injector 650 HP

Sniper 2 EFI 4BBL Self-Tuning System with PDM — Black 800 cfm, 4 Injectors, 650 HP

The Sniper 2 EFI 4BBL is a self-tuning, easy-to-install EFI conversion designed for common 4-barrel (4150 flange) carburetors. Building on the proven Sniper EFI lineage, this system adds 14 new features to simplify installation, improve reliability, and deliver modern fuel-injected performance. It’s built to work within the Sniper EFI Ecosystem, including Hyperspark ignition, complete fuel systems, and versatile display options.

Key upgrades you’ll notice with Sniper 2 include a redesigned throttle body, a streamlined wiring approach, and a powerful calibration wizard that begins self-tuning with just a few engine details—no laptop required. An optional Power Distribution Module (PDM) consolidates ignition and EFI wiring in one location for tidy, reliable wiring and easier installation. With battery power and a switched 12-volt source, your Sniper EFI system powers up quickly and cleanly.

What makes Sniper 2 EFI 4BBL stand out

• Only four wiring connections required: Battery+, Battery-, Switched Ignition, and RPM
• Calibration wizard creates a base map from a few simple engine questions to start self-tuning immediately
• Supports up to 650 hp naturally aspirated or 575 hp on boost with four 100 lb/hr injectors
• New RF noise and interference resistance protects performance in the face of older wiring and alternators
• Redesigned throttle shaft and plate geometry for a smoother, more responsive feel
• Fully compatible with the Sniper EFI Ecosystem: plug-and-play Hyperspark ignition, fuel systems, multiple displays, and more
• Main harness includes plug-and-play HyperSpark distributor support for integrated timing control
• Adapters available for other ignition types (CD Box to Sniper 2, MSD Pro Billet / Crank Trigger to Sniper 2)
• Wide range of display interfaces: 3.5-inch full-color LCD handheld, 5-inch Digital Dash, or Bluetooth dongle for iOS/Android

Performance, tuning, and everyday usability

• 800 cfm 4-barrel throttle body with four injectors delivers precise fuel delivery for high-performance applications
• Four 100 lb/hr injectors provide ample fuel capacity for both naturally aspirated and boosted setups
• Cold starts are easier and drivability is smoother, making your classic feel and drive more modern
• Designed for at-home installation with limited tools, guided by Holley’s installation manual and videos

System compatibility and integration

• Works within the Sniper EFI Ecosystem, enabling seamless upgrades with Hyperspark ignition, fuel systems, and display options
• The optional PDM consolidates power management for EFI and ignition wiring, simplifying wiring complexity
• Includes or supports a Fuel Pump Kit as part of the Sniper 2 setup (PDM-powered configuration requires appropriate wiring)