Edelbrock part #27033 Performer EPS intake manifold is designed for 1986 and earlier 262-400 cubic-inch Chevys. Edelbrock's Patented Dual-plane, low-rise design with a 180-degree firing order greatly improves torque over a wide rpm range for excellent throttle response. This Performer EPS intake manifold combines a modern runner design with a front mounted oil fill tube for those who want the vintage look of our Classic valve covers with no breathers. Includes Oil Fill Tube (not installed) and matching push-in breather cap. The Oil Fill Tube and Breather are also available separately as #4803. This intake manifold is optimized to deliver superior performance with Edelbrock square-bore Performer Series or Thunder Series AVS carburetors.