Hmm, maybe... 210kph -10% for speedo-error = 189kph/117mph. Would still need about 55-60bhp for that. Was probably going downhill with tail-wind.
FI 250 can get +5hp more than carbed version with full-exhaust and matching ECU tuning. So ~40bhp perhaps.
To get baseline before mods, do a top-speed run on your bike in stock form. What did you get?