Depends what u want really. 3.92 mental acceleration but low top end and reving its nuts off on the motorway.
Personally had a 3.62 with a zx9 motor and was still quick as f*$k but much nicer to drive everyday.
Other option is buy a 3.92 and try it and if u dont like it buy a 3.62 as its an easy swop .
( a piece of string is double its length from the centre !!!!!!!!!!!!)