93 pump gas, compression and boost?

So if you were to build one of these engines to use on pump 93, what kind of compression can you get away with and still add boost? I know the Hellcat is 9.5:1. Is that about the limit ?

I use water injection on my TT383 and while I'm a ways off on my turbo 5.7 build, I plan to inject it as well. To me running pump gas + injection is the economical way to manage it.

I am not sure what others are running, but I am running a stock crank with drop in pistons and rods with about 9.78 compression. I am running about 10 psi with methanol injection. I have only been running with the supercharger for about a month, but so far so good.