273 Supercharging?

I know, I know "just get a 360". I have a 273. I don't like doing what everyone else does. I am not going to say money is not an problem. But I like the cool factor. So now that all thats out of the way.
I plan to source a centrifugal super charger, No intercooler, and use a fast EFI throttle body that I have sitting here.

I have a stockish built 273. It has been rebuilt at some point and has a hydro cam and a set of solid lifters. I plan to take it all the way down and do bearings, degree cam, balance pistons and rods. Heads are at a buddies shop getting full race treatment only because he owed me money. So Good springs and guides, valves and such. I am not looking for a monster just a fun street toy for the family. Figured putting arp studs and a good set of gaskets. Figured 5-7 psi. Any other thoughts? Does anyone make forged pistons?

Anyone else done this? What is a good red line for these little suckers with what I have done. Can I get to 300 HP?

Any input would be appreciated.