Everything i have read on efi port 2t (posted examples) is that there is an increase in power. smoothness, lowdown torque, throttle response (ignition) and general rideability.
When i started doing research on the topic(about 4 years ago) i wanted to do semy direct injection, but the power requirements and weight were to high(high pressure fuel pump).
When i have all the required parts i will start testing and when it is done, advrider is the first place i will show what i have accomplished.
Parts just for the efi system (sensors eco fuel pump battery regulator etc) and dyno time will cost me about 1850 USD.