Ok,
On my 2001 People 2T, a restricted Kymco CDI got me to around the 40 mph range. Yesterday at lunch I swapped it out with a Kymco CDI with the green plug set up. On my way home from work, I was consistently seeing 53 mph on the flats. So, on the older 2T's it seems as though a restricted vs un-restricted CDI makes a huge difference. I also noticed that the engine seemed to behave differently in the mid to upper range with the Kymco CDI, vs the E-Bay DC CDI that I had in there. With the E-Bay CDI, she got to the mid/upper range really quick. Top speed on flats was usually around 50. The Kymco unrestricted CDI is a bit slower getting through the mid/upper range, but seems to allow more rev, giving me a bit more speed.