Edelbrock part #2131 Performer AMC intake manifold is designed for 1970-91 street 304-360-401 c.i.d. V8 engines. Will not accept stock Motorcraft spread-bore carburetor. 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.