I have a K24 which have been bored and stroked, and relevant to this port did the following upgrades: - Added a Go-Power cam from Jeff. - Having started with a TSX head, we machined the cam sprocket to advance to 40 degrees instead of the standard 20 degrees. - Loaded heavier springs to deal...

But who has the solution? Chunky does. :p Watch the video, and please read this entire thread. http://www.youtube.com/watch?v=KdWk-CCKfuU I have a very good idea of what is causing timing chain failures with skunk2 cams now. Let's see if someone can guess what the problem is. Some notes...