Edelbrock part #2146 Performer Buick 455 intake manifold is designed for street 400-430-455 c.i.d. Buick V8's. Manifold not equipped with EGR. Will fit cold air induction hoods. Will not fit Buick 350. 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 from off-idle through 5500rpm. The Performer intake manifolds are ideal for passenger cars, trucks, 4x4s, tow vehicles and RVs.