Edelbrock Performer Manifold 351C-4VEdelbrock part #2665 Performer 351 4V intake manifold is designed for street 351C and Boss 351 Fords that came stock with 4V carb and heads. Manifold will fit Boss 302 or accept stock Motorcraft spread bore carb. End seal flange width measures 6 31 32". 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. This