07 Carb VS 10 Fi

I have a gt250 fi personally I’d prefer a carb one as they are easier to set up & tune, the fi your pretty much stuck to what it does.

EFI – Snappy throttle response when all parts work perfectly
Cons = More cash for parts if ECU or stator goes wrong  (but carb or efi is recommended to upgrade regulators)
EFi – Try to get a DELPHI system as it is a bit more stable.
Cons = DAEWOO ECU is hard to buy , so make sure to look after it!

And what Simon said about EFi bikes too in terms of tuning

Carby = Easier to tune, less electronics.
Cons = Carbs do not like bad tanks or dirty fuel , and difficult to buy a new carb!

EFi and Carby Cons = They do not like E10 fuel.   Use e5 forever.