Cam upgrade
 

So I have an 05 powerstroke. I'm doing a full tear down and putting in a aftermarket cam shaft. In doing so what I dig up on it is there's some mods that need to be done with it. I have no clue what those mods are; any one willing to help with the info?

Youre probably doing this anyway if youre doing a full rebuild but make sure to buy new lifters. Its fairly cheap insurance. Cant really think of any other "mods" needed to do a cam. Most aftermarket cams should be a direct swap.