Chevy BBC 454 Downdraft 8 Stack Intake Manifold System Complete Satin. Part Type: Intake Manifold, injection. Intake Trumpets: Intake Trumpets Included. Injection Style: 8 Throttle body. The Speedmaster Individual throttle body EFI system have all the flash of classic Weber induction but provide higher state of tune and engine performance versatility of EFI.
