Is it a good idea to move the battery?

[evilC]

The current battery position is at the neutral axis for the chassis so it has little effect on the handling. Move it to the front and you are adding around 10kgs (depends on the battery) to the wheel load, which is a small amount. On the minus side:
1) The roll couple is increased (not necessarily a bad thing though)
2) The polar moment of inertia is significantly increased - 10kgx2m(ish) = 20kgm (about a 1/3 of PoM of the engine) This will dull the chassis response as the interia to overcome the resistance to turn is increased.
3) There will be a weight penatly for the cable for the starter that will need to be quite hefty so as not to drop too much voltage.

Clive