GSX 250

[surplus 6]

I know this may be a long shot, but does anyone know of any tuning info for the GSX 250, it's not headin for the track I just want to "warm things up a bit" for the road. Why a 250, well I've been given a free one, and if my plan works I can sneak it under the radar by telling her in doors it's her's if she ever passes her test. 

[surplus 6]

as there seems very little info out there, can anyone tell me if the 400 or 450 engine would fit the 250 frame?