Good luck with your build, and am looking forward to your results! There might be some room to push the compression up a touch, as you look to have a fairly long duration cam going in. My buddy's iron head 452 build got away with 10.2 compression on 92 non oxy pump, running a 268 @ .050 duration hydraulic cam. It showed a cranking compression of 168 or so on a web site calculator, and I thought you might want to optimize that for your build, especially since it will probably have decent quench?