This new FAST system features “self tuning” mode for simple and affordable plug & play installation. Fear not fuel injection fans. FAST™ has just made it easier than ever to convert your engine from carburetion to fuel injection with the new FAST™ EZ-EFI™ Self Tuning Fuel Injection System. 

The most important feature of this amazingly efficient system is the self-tuning operation that does not require chasing components, expert tuning experience or a laptop computer to tune. Simply hook it up, answer the basic set-up Wizard questions on the included hand-held display, and the system truly tunes itself. The FAST™ EZ-EFI™ Self Tuning Fuel Injection System is a totally complete system including the ECU, wide-band oxygen sensor, wiring harness, fuel injectors, fuel pump kit and other assorted components, including the innovative new 4150 Throttle Body from FAST™.
 
The FAST™ 4150 Throttle Body delivers the total package approach for anyone with an existing 4150-type intake manifold. Everything comes with the throttle body, including appropriate fuel injectors and fuel rails. In addition, it works with the original carb-style linkage and is ready to accept all OEM sensors. Available with injectors in four different flow rates to tune the system specifically for your engine, this well-engineered and high performance-intended product is a true plug & play system that will satisfy the requirements of FAST™ XFI™ engine controllers and all other major systems.
 
For more information about the FAST™ EZ-EFI™ Self Tuning Fuel Injection System, the 4150 Throttle Body, or any other FAST™ product, call 1-877-334-8355 or online at www.fuelairspark.com.