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EFI Self-Tuning Kits
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.
what type of warranty is given?
I have an 350 vortec/700r4 what would be the best street intake manifold and brackets for 700r4 tv cable i seen on engine masters that the dual plane intake manifold caused fuel distribution problems so they went with a single plane and it worked great
Is there an adaptor for the kick down linkage for big block mopar to use on a 727 automatic trans.
My 71 GMC PU has an in bed fuel tank with a top siphon tube running to the mechanical fuel pump/carb. Will this fuel pump draw from the top siphon tube with pump mounted flush to the tank bottom, I have the tank inside an aluminum tool box in bed. Thanks
can you pump e85?
Will this work with a nitrous oxide Cheater plate system with a 150 shot.
I still have an (old) new-in-box Mallory Unilite for my SB (260) Ford. Will this be usable with the Sniper?
Will this kit work on an LS with holley dual plane carb intake manifold and MSD 6010 Box?
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
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Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.