Hello I have a 03 400ex with a WhiteBrothers revbox and a WhiteBrothers R4 muffler a K&N filter and soon a WhiteBrothers stage 1 cam. I've been pondering a 416 kit but I want to keep the stage 1 cam and I always hear the hotcams are the best Which I don't understand I thought WhiteBrothers products are top of the line and I'am been satisfied so far but anyways. My 400 probably only has about 40 hours on it. And I was told I should wait to hone and bore until my motor needs dug into and I should just stick with the bolt- ons for know and wait which makes sense so I was just wanting some opinions. And by the way I like the bottom end power of the 416 so any info comparing the 416, 426, 440, in bottom end strength would be helpful also. Thanks Alot