Does anyone one know if its a good idea? 'm putting a big bore kit in my 05 z400.I was thinking about getting the heads shaved,but i don't know any one who has or if its a good idea.Let me know if you know anything about it or just your thoughts!

 

I would just get the compression you want and leave the head alone. The more you shave off the head the more it throws the cam timing off.