Edelbrock 3828 70mm EGR Adapter Plate 70mm is the optimum choice for the Performer 5.0 and Performer RPM 5.0 EFI intake EGR Plate is made of aluminum with a natural finish Throttle bodies are used with suitable EGR plates Must be used in combination with #350-3824 65mm throttle body on all 1986-93 5.0L Mustangs All gaskets included