Street legal for late-model 5.0L Ford Mustangs. 65mm size is ideal for stock manifolds. 70mm is the optimum choice for the Performer 5.0/Performer RPM 5.0 EFI intake and Total Power Package (70mm gained 10 hp over stock throttle body). 75mm is intended for more radical engine combinations and requires port matching to fit most manifolds. 1986-93 Throttle Bodies must be used with matching EGR Plates. Gaskets are included. See Ford S/B Fuel Injection Manifolds for 5.0L intakes. Edelbrock Throttle Body 3826 75mm - More Radical Engine Combinations - Requires Port Matching To Fit Most Manifolds - Street LegalLarger Diameter Increases Flow and PerformanceDirect Bolt-On; No Modifications NecessaryManufacture red On Sophisticated MachineryButterflies Are Precision MachinedIncludes New Machined Throttle Position SensorBolts To Stock Or Aftermarket ManifoldAll Stock Sensors And Lines Fit Like StockPit Stop USAoffers Edelbrock Throttle Body 3826 at low everyday prices. Be sure to check out all of the products from Edelbrock including Edelbrock Fuel System and Intake Parts and Accessories, Edelbrock Fuel Injection, Edelbrock Throttle Bodies.