I'm planning on getting a turbo soon, so i'm going to get some head work and i wanna get oversized valves. i was planning on keeping my stock cams but are there better cams that i could get? (do gsr cams pull to 9k?)

And one more question should i just get oversized valves on the exhaust cams and leave intake stock or just do both?

 

i wouldn't bother with over-sized valves, and keep the gsr cams. It has been proven that they are more than accpetable, if not the best, but several companies make turbo cams if you are so inclined.