http://wallaceracing.com/Calculators.htm
From this calculator you can figure things up.
It's showing 14.40 with 6.6 cc valve reliefs and 466.8 CI
I have read here that the best goal for boosted application is 8.1 CR so you will probably need to change the heads or have the chambers opened up if possible. 10 to 1 will still be quite high. But I do not know that for sure. Someone else will probably confirm that.