Keep in mind one full point of added compression only equals about a 3% increase in power. I'll be damned if I'd go over about 10.5. Beyond that, you get diminished returns since you have to have race gas or E85 involved. I'd keep it simple.
Interesting that you mention E85. There isn’t much close to me, but I’ve been looking into it. What’s really strange is how viscous it is. It’s almost oily. I have no idea what’s in it (yet) that makes it so oily and viscous, but I do know it changes the tune up. By a quite a bit.