Fuel Injector Clinic performance fuel injector set.Manufacturer Part Number: ISH01-0650H & PGTUSC8VEHICLE / ENGINE COMPATIBILITY: Holley GM and Ford intake applicationsINJECTOR APPLICATION VERIFIED:FIC 650cc injector set for Holley GM and Ford intake applications Brand: Fuel Injector Clinic / FIC Flow Rate: 650cc where specified in the part number Impedance: High-Z / High Impedance where indicated by the H suffix Fuel Injector Clinic injector sets are flow matched and include application-specific fitment components where applicable. Designed for gasoline and E85 performance applications. Please confirm injector size, connector type, fuel rail setup, and fitment before installation or tuning.