Edelbrock Performer 5.0 RPM II Intake Manifold for Ford 5.0 Small-Block V8Edelbrock part #71233 Performer 5. 0 RPM II intake manifold for 1986 95 5. 0L Mustang engines has shown significant gains in horsepower over existing designs in the 1500 to 6500 rpm range, and is ideally suited for street and strip applications. This manifold consists of a V shaped crossover with an increasing cross sectional area, which passes over to eight large tapered runners. Our 70mm throttle body is recommended (75mm will require port