Building on the success of the Victor Jr. LS1 manifold, the Super Victor LS1 offers greater air flow potential for ever bigger power gains from these modern engines. The carb mount pad is 1.12" taller than the Victor Jr. LS1, and the port exits have been increased to 1.08" x 2.74". Use Edelbrock Timing Control Module # ED91238 to drive the stock coil-on-plug ignition system. This manifold has already been accepted by NASCAR for use in the Grand National division/Busch North spec engine series. Super Victor EFI LS1 manifold # ED28095 is for high-output competition EFI systems and features precisely positioned and machined injector bosses for excellent fuel spray patterns and maximum power. Universal 4-Barrel Throttle Bodies, fuel rails, fuel injectors, fuel pumps and regulators are available separately to complete your competition EFI system.. Made in USA