Holley Sniper EFI 3.5 in Touchscreen Programmer - Holley Sniper EFI System 3550224-123-XXL When converting your fuel system

When converting your fuel system to a return style EFI setup

Some applications have the organic segmented facings of both sides

Improper installation will void your warranty and may result in poor performance and engine or vehicle damage

1975-1977 Mercury Monarch

Holley Sniper EFI 3.5 in Touchscreen Programmer - Holley Sniper EFI System 3550224-123-XXL When converting your fuel systemProduct Description: Programmer 3. 5 in Touchscreen Sniper EFI System Sold Individually Sniper brings high quality fueling products to the masses. Featuring everything from fabricated intake manifolds, high performance plumbing parts, fuel tanks, pumps and regulators, and the Sniper EFI line of self tuning fuel injection systems, with Sniper, you can count on high quality performance without the high end price!