Holley Stealth Ram Fuel Injection Connector Kit 534-213 | Holley is probably best known for its hot-rodding image. Indeed, Holley DOMINATOR? carburetors still propel 1,200-horsepower Pro Stockers down the quarter mile. But that's only part of our story. Holley Performance Products provides a diverse line of merchandise for original equipment, as well as the aftermarket.