building my 2005 blaster motor

[1000rrstunna]

So I finally found a blaster worth building.. its a 2005 and bone stock looking to do pipes and some sort of motor work... was thinking head job and porting from ken oconnor but im also considering a 240 vitos kit... what would you choose and why also if i were to do these mods which pipe would suit them best a b1 toomey or a dynoport? any info appreciated i ride trail and am not a super aggressive rider most daysi just like going fast haha.. i already have a banshee axle and a elka stage 4 rear shock i got off another member....

i should also mote my gf rides this machine as well so i dint want to kill her either.... dont think i quite need double the speed but i would like a 25% improvement atleast..

thanks