echnology advances in leaps and bounds these days. With a new smartphone coming out every week, it seems that features so advanced in modern vehicles were unheard of only a few short years ago. So, it should come as no surprise when a company like Holley announces a new system that modernizes what’s been available for over a decade—and that system is the Holley Sniper 2 EFI. Designed as an upgraded replacement for the original Sniper system, the Sniper 2 features upgrades in many of its electronic components with built-in features and factory settings based on 10-plus years of developmental data from the original Sniper system.

The installation of a Sniper 2 system is similar to that of other EFI systems, with the required high-pressure fuel pump, regulator, lines, and a handful of necessary wiring connections. On a carbureted vehicle, an EFI install can be slightly daunting, which is where Holley’s Sniper 2 ecosystem shines: it combines all the necessary components required to make the upgrade in one kit.

Our project Corvette already had an older Sniper throttle body installed, so the swap from that to the new Sniper 2 is about as easy as it can get since Holley offers an adapter harness that plugs the existing Sniper wiring harness into the new Sniper 2 throttle body, plug-and-play. We did have to modify the fuel lines at the throttle body since the original Sniper locates those on the rear while the Sniper 2 feeds from the side like a traditional 4150 4-bbl carb.

With the removal of the original Sniper system in the morning, by that afternoon, we were already up and running with the Sniper 2, making minute, on-the-fly adjustments on our first testdrive. After inputting only a few parameters into the handheld following the Sniper Wizard, it’s amazing how well the car ran with a simple base map tune. No doubt, as more miles are put on the car, the Sniper 2 system will continue to make changes to the fuel table and base map, further improving the driving experience.