Scott Shafiroff was one of the original stars of Pro Stock, remains one of Competition Eliminator's all-time greats, and has been the driving force behind some of the most powerful engines to come out of the New York City area or anywhere. One thing he never specialized in before was electronic fuel injection. Until now. Shafiroff's latest creation is a naturally aspirated 615 cubic-inch big-block with Holley EFI that puts out nearly 1,000 horsepower on pump gas! "It's got a few things old-timers think they don't want, like a hydraulic roller cam," says Shafiroff's right-hand man, Vinny Budano, the 2005, 2006, and 2007 NMCA Pro Street champ. "The whole thing is pretty awesome, really – especially the fuel injection. I mean, this thing's running on pump gas." Robin Lawrence from Holley made the trip out to Long Island to get in on the fun, and he, Shafiroff, and Budano descended on the engine from Dennis Ingram's '66 Chevelle and got to work. By the time they pulled that big-block off the dyno, it was shaking the rafters with 956 horsepower. "We've built a of ton of carbureted engines pretty similar to this one, so we knew it was going to make plenty of power," said Budano, who drives the "Bad Apples" Pro Mod Camaro for the well-known "Boyz From New York" crew. "We've actually done quite a few engines with EFI, too – they just weren't in the higher horsepower range like this. I have to say, Holley made believers out of us. It's just so user-friendly. It started, it idled, it ran – no problem. We just looked at each other, like, 'We should have done this a long time ago.' " Shafiroff himself probably put it best: Who says you can’t teach an old dog new tricks? Check out the dyno sheet below to see how it performed at every rpm: