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"Four wires to EFI”…that’s the beauty of the Holley Sniper Hyperspark Master Kits! We can tell you how easy it is to install one of these kits, but we’d rather show you! We have a Chevy 350 on a run stand and a timer running. From the initial battery disconnection to first fire, we’ll show you how easy it is to make the conversion to fuel injection!