Head Removal and Install
1. How much horse power does the stock rocker arms and springs support?
2. Is upgrading my stock rocker arms to a roller rocker worth it in the end.
3. Last but not least is my heads. Is it possible to change the rocker arms and valve springs without taking off the heads. If so does anyone have the check list for that performing this task.
My ride is a 2010 GS C6 that has A&A Supercharging System Si trim, Longtube Headers and Methanol.



