Sniper 2 EFI converts a common 4-barrel carbureted engine to modern self-tuning fuel injection for easy cold starts, smooth drivability, and improved fuel economy. A guided setup wizard lets the system self-tune with no laptop required.

Holley 550-510-3AE Highlights:

• Direct replacement for 4150 flange 4-barrel carburetors.
• Handles up to 650 HP naturally aspirated.
• Self-tuning with a 3.5 in. handheld display.
• Integrated throttle body and ECU.
• Compatible with the Sniper EFI ecosystem, including HyperSpark ignition.