Speedmaster Downdraft EFI System Polished With FiTech Ultra EFI Polished Ford 390-428

For high-performance Ford 390-428 engines, the Speedmaster Polished Downdraft EFI System (1-135-008-02) with FiTech Ultra Fuel Injection System is an exceptional choice. The heat-treated 601 cast aluminum is CNC machined to guarantee precision and reliability. This system's outstanding throttle response and smooth engine operation are enhanced by its tight air and fuel ratio control, which provides a higher state of tune for a powerful driving experience.

Features and Benefits:
- Capable of supporting high horsepower
- CNC machined
- Heat-treated 601 cast aluminum
- Excellent throttle response and smooth engine operation
- Improved fuel economy
- Tight air and fuel ratio control
- Provides a higher state of tune
- Stunning polished finish
- Butterflies are measured for each bore and precision machined to a closer tolerance
- Butterflies are secured to centerless ground brass shafts
- O-ring seals on lower mounting faces

The system also boasts improved fuel economy and a stunning polished finish. Butterflies used in the system are measured and machined precisely, and they are fastened to brass shafts with split screws for added security and ease of service. Moreover, O-ring seals on lower mounting surfaces maintain efficiency. The Speedmaster system is an unparalleled addition to any performance-loving Ford owner's vehicle.

Specifications:
- Injection style: 8 throttle body
- Operating RPM: idle to 7000
- Intake trumpets: included
- EGR: no
- Finish: polished

Vehicle Fitment:
- 1965-1995 Ford Mustangs
- 1966-1977 Ford Broncos
- 1948-1979 Ford F-100s
- Fits Ford 390-428 Engines

Please Note: Includes FiTech Ultra EFI Management System and harness. Additionally, the kit comes with a comprehensive sensor kit and a set of injectors.