lowering compression will also lower power output, there is a simple formula for target HP and boost setting and what ur compression should be, as well as octane and a bunch of other things. i just have to find it again.

tuning and good fuel setup should allow you to run decent boost levels on a 9.0 - 9.5 CR

JE forged pistons are decently cheap compared to other brands, you can also go cheaper with Eagle rods versus Crower rods.

i recommend king bearings

~boomer