Edelbrock 71373 Pro-Flo XT EFI Black Intake Manifold for Small Block ChevyPro Flo XT Small Block Chevy EFI Black Intake Manifold Edelbrock part #71373 Pro Flo XT intake manifold is designed for 1957 86 small block Chevy V8 applications. The Pro Flo XT intakes are engineered with a large plenum and long tapered runners to deliver maximum horsepower and broad torque throughout the rpm range (1500 7000 rpm). Pro Flo XT EFI intakes accept Edelbrock Pro Flo XT Throttle Bodies and Fuel Rails. This manifold offers a durable black