Top end rebuild. Suggestions?

[CGriff]

Hey there im rebuilding the top end in my 2003 400ex and was wondering if anyone had suggestions for aditional parts I should add. I have everything apart right now and have a Hotcam stg1 cam, HD timing chain, and Wiesco 426 kit to go in.
My quad has a lot of hours on it so I was just wondering if there are any other parts I should add while its apart.

[LeGaCyGiAnT124]

Check the cam guides, valves, and the rockers. That is all I can think of. Good luck with the build, that 426 should rip.