If you're interested in FAST EZ-EFI systems or conversions, take an exclusive look at this month's "Ingenious Injection" article, which features detailed product information and pictures! Check ...

Released in 2004, FAST's XFI engine management system continues to be a favorite with cruisers and racers alike, and the company's new EZ-EFI system can literally tune itself.

There are several features built into the EZ-EFI system to improve drivability. The key one is what FAST calls "Adaptive Learning." This, in essence, lets the system tune itself.