Edelbrock Part # 28265 Super Victor LS3 EFI intake manifold is designed for Gen IV LS engines equipped with LS3 cylinder heads. This new Super Victor intake manifold is ideal for anyone building a 700+ hp 4150 series EFI large displacement racing engine operating between 3,500 - 7,500 rpm. The large plenum makes this intake manifold ideal for nitrous and forced induction applications. This EFI intake manifold also features tapered runners for increased flow at high rpm. A carburetor mounted style throttle bracket is recommended.