Quote Originally Posted by RedEj8
Using this. http://www.zealautowerks.com/bseries.html

With stock gsr pistons I got only 9.8:1. I duno if you're using Type R pistons though or if the head has been milled...Or if this site is correct.
reps!! nice find!! yeh i did it and got the same thing. 9.8 would be perfect for boost!