Chev Holley EFI LS Hi-Ram Intake Manifold Base LS1 LS2 LS6 # HO300-227Chev Holley EFI LS Hi Ram Intake Manifold Base LS1 LS2 LS6 # HO300 227 Intake Manifolds, EFI, LS, Hi Ram, Base Only, Cathedral Port, Multi port, Standard Deck, Aluminum, Satin Finish, Chevy, 4. 8L, 5. 3L, 5. 7L, 6. 0L, Each Cylinder Head Configuration: Cathedral Port LS1 LS2 LS6 Fuel Injection Style: Multi port Basic Operating RPM Range: Idle 8,000 Intake Section Included: Base only Engine Block Deck Height: Standard deck Injectors Included: No Multi