Performer 351-4V & 351-2V

Ford 351 Cleveland V8
PERFORMER 351-4V & 351-2V (idle-5500 rpm)
Performer 351-4V is designed for street 351-C and Boss 351 Fords that came stock with 4V carb and heads. Performer 351-2V is designed for street 351-C and accepts 4V carb, however it's designed to improve the performance of engines that came stock with 2V carb and heads. Neither manifold will fit Boss 302 or accept stock Motorcraft spread-bore carb. Valley width measures 6-31/32".