Have a few questions on turbo build
 

Have a few questions as too a friends build. the way the car sits is a ms3 with prc 2.5 heads, ls6 intake and stock bottomend. how will a 76m turbo work wit this setup or should he just change the whole top end. what would a good setup to start out wit..

The h/c combo needs to go bye bye. 317s and a z06 cam.

how much will the 317's drop the compression too wit the zo6 cam.

what other cams would u guys recommend,