Skunk2 307-05-8080 Ultra Series Intake Manifold - RACE CENTERFEED K20A - K20A2 - K20A3 - K20Z1 - K24A1 Engines / PRB / PRC Head - CENTERFEED Silver Plenum Base Adapter - 5.0L Volume - 90mm Inlet w/ Early 5.0L Ford T/ Body Bolt Pattern (4.25" Square Bolt Spacing)