Holley 550-516K Sniper EFI Master Kit with Classic Finish Features:

• Dual Pattern bolt-on carburetor replacement, made to fit 4150 Flange & Spread Bore manifolds
• Simple Calibration Wizard - Answer a few questions about your engine, and it creates the base map, then starts tuning on its own with no laptop needed
• Self-tuning ECU for easy EFI without requiring advanced computer/tuning skills
• Only 4 Wiring Connections Required - Battery +, Battery -, Switched Ignition & RPM
• High-Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
• Supports up to 650hp with Four 100 Lb/Hr Injectors!
• Throttle body mounted ECU – no extra boxes to mount
• Includes complete fuel system consisting of; 20ft of 3/8” Vapor Guard Fuel Hose, Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank!
• Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
• Integrated ignition timing control & coil driver
• The included Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
• OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service
• Included clamp-on oxygen sensor kit ensures a leak-free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange

Note: If using a Holley Dual Sync distributor, adapter harness p/n 510-558-493 is required to connect to the Sniper EFI.

• For Troubleshooting Tips setting up your New Holley Sniper EFI System, please see this helpful video from Holley Performance.