400 Non Stroker Build

I have a 76 400 I’m thinking about dropping in a 71 C-body. The motor needs rebuilt. I would like to know what kind of power I could realistically make with this.

Keith Black makes pistons I can use to help raise compression correct? Say .030 400 pistons. I’ve seen some pistons but most are for strokers.
I would also probably run stealth heads. I want straight plugs. I have a Edelbrock DP4B intake so I would use that. Would also install a cam etc.... I would also gear it with say 3:55 or lower gears. If I go on a road trip I can swap the 2.76 unit back in. May just go 3.23. My goal is to have a streetable motor and make good power and run pump gas.

Any ideas or suggestions???? I may just build a stroker with this but right now trying to see what I can get without doing that. Ive seen a few builds on here and the one with low compression etc... was really impressive. Thanks for any tips and suggestions!!!