Static CR is 11.7:1. The ports were that size when I bought the heads, they were enlarged some time in the past. Ideally, they could be smaller and that would probably bring the torque up some down low, but as it stands at 900+ ft-lbs in a NA narrow tire class it should do fine. On top I think the engine is making everything it can with that cam, the oversize ports don't seem to be hurting it. I'm curious to see how it drives on the street.