Skunk2 307-05-9055 Ultra Series Intake Manifold - RACE B16A - B16B - B17A - B18C Engines or PR3 / P72 Head - BLK SERIES Black Series - Black Plenum Base Adapter - 3.5L Volume - 90mm Inlet w/ Early 5.0L Ford T/ Body Bolt Pattern (4.25" Square Bolt Spacing)