Upgrade your 1990 Ford Mustang's performance and efficiency with a high-quality EFI (Electronic Fuel Injection) system from our Air & Fuel Delivery collection. Designed to provide precise fuel delivery and optimal air-fuel ratios, this EFI system ensures smooth engine operation, improved throttle response, and better fuel economy. Whether you're restoring a classic Fox Body or enhancing its performance for the street or strip, this fuel injection system delivers modern reliability with classic muscle. Built for durability and easy installation, it's a must-have for any Mustang enthusiast looking to get the most out of their ride.