read somewhere that the worst fuel injection is better than the best carb
Not strictly true...there is some poorly done EFI out there.
EFI's great advantage isn't in top end...a carb will perfom just as well for ultimate power. EFI's forte is getting the mapping correct across throttle and load settings, making starting and part throttle driving more efficient.
If you're thinking EFI for performance reasons, look into digital systems allowing sequential control and true port injection.
If you just like the simplicity of a self tuning/learning system that basically worked like a carby, but does it all better (and controls timing) then there are a few throttle body style systems out there to look at...the latest one thats a very simple design/package is the MSD Atomic EFI.
Hand held controller for set up.....system is closed loop, self learning.