Edelbrock 5 8L Truck ManifoldEdelbrock part #3881 Performer 5. 8L EFI intake manifold is designed for 1988 96 Ford 5. 8L, EFI, truck engines, the modular design of this manifold incorporates the latest air flow technology for maximum torque gains in the mid range. This manifold made 34 ft lbs. more torque than stock on our test engine. Other features include: broad power range from idle to 5500 rpm; removable plenum cover that allows access to runners; base manifold is CNC port