This high-rise single plane intake is capable of supporting up to 600 hp. The Victor Jr. LS1 accepts both Edelbrock EFI intake elbows and throttle body or four-barrel throttle bodies. Features precisely positioned and machined injector bosses for excellent fuel spray patterns and maximum power. Universal 4-Barrel Throttle Bodies, fuel injectors, fuel pumps and regulators are available separately to complete your EFI system. Machined Fuel Rail included with manifold. Most applications will require hood modification.