1964-1977 Chevelle Holley Super Sniper 4150 EFI Conversion, Black Ceramic Finish, up to 650hp 550-519

Introducing Holley Super Sniper EFI!
Looking to convert your Chevelles blow thru carbureted turbo engine to EFI?Look no further. Holley offers a 650 HP four injector version for lower horsepower applications with a power adder or someone just needing additional sensor inputs. Did we mention the Super Sniper also has full nitrous control built-in? That's right, no need for a separate nitrous controller! Every Super Sniper EFI system also comes with a USB to CAN tuning cable, as well as free downloadable Sniper EFI Software to give you unlimited control of your engine.

Features:

• 650 HP version features four 100 Lb/Hr Injectors
• Compatible with Draw-Thru or Blow-Thru forced induction applications
• User-friendly Boost Control with handheld adjustability
• Programmable Target Air Fuel Ratios per Boost level
• Advanced boost control is available via free Sniper EFI tuning software, including Boost vs RPM and Boost vs Time - Same popular boost control offered in Holley HP and Dominator EFI systems!
• 2.5 Bar MAP sensor included which safely works on applications up to 21.5 PSI
• Built-in Single stage progressive nitrous control
• Dry or Wet Nitrous Support
• Progressive or Non-Progressive control strategies
• Lean/Rich AFR Cutoff
• Time or RPM based Timing Retard and much more!
• Integrated ignition timing control for precise timing curves
• Programmable inputs and outputs
• Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure Sensors
• Six Programmable Ground Outputs
• One +5v Reference Output - +5V Power Supply for 0-5v Sensors
• One Sensor Ground - Ground supply for 0-5v Sensors
• Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI) for N/A or Nitrous applications
• Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
• Only 4 Wiring Connections Required! (Battery +, Battery-, Switched Ignition & RPM)
• 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!
• The included Genuine 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
• Throttle body mounted ECU - no extra boxes to mount
• USB to CAN Communication cable included for easy laptop tuning of advanced controls
• Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate recommended)
• Compatible with Holley EFI analog gauges and electronic dashes
• Patent Pending

Specs:

• CFM: 800
• Finish: Black Ceramic
• Height: 3.28in
• Injector Size: 100 lb/hr @ 58.5 PSI
• Inlet / Outlet Size: 9/16-18 Female O-Ring (AN 6)
• MAP Sensor: 2.5Bar
• Max Horsepower Rating : 650 Forced Induction

Manufacturer Part Number : 550-519

Part Notes:

Helpful Articles:

• Prepping for Fuel Injection