There is a car on here runs 406 bhp on greys a T34.63 and BD 10's on std comp aswell

I was told a long time ago that 10's were not that good and your low down suffered and they was not much different to std cams...

The choice is yours cams and headwork and pistons if going to 14's= big money OR a really good pair of rear tyres to get the most power to the ground

you would be better of going for a coilpack conversion so you can then run bigger plug gaps for a better burn,emisions,and running and more mpg