How to increase bhp on honda vfr400 nc24

[PAGAN1001]

Can anyone tell me of ways to increase the horse power of s honda vfr 400 nc24????????. I would be greatly thank full. So please if anyone knows of ways that will do this without damaging the bike then please let me know.................. the sooner the better. Cheers Iain

[Spikenipple]

Get the engine blueprinted then have the head skimmed and ported, and get some race cams in there. Sorted.