Any small block built with modern heads and a modern cam grind can produce one horsepower per cubic inch (a feat that required a set of special fuelie heads, very special mechanical fuel injection, high compression pistons, and a solid cam back when these cars where new). and still have very decent street maners. In fact even at a level of about 1.25 horse from every cube it can still be street driven but you will not be able to pass it off as a stock motor. Of course modern aluminum heads unless disguised with some fancy CNC work and a little TIG welding not to mention a can of orange paint won't pass for stock either.
Performance of one horse per cube on what we used to think of as swill in terms of gasoline is the accepted norm now with aluminum heads and hydraulic roller cams. So if you want about 283 horse power you build a 292 (0.060" over 283 because odds are even a 0.030" bore is rare with a motor this old). You want 331 horsepower you build a 331 (a 0.030" overbored 327). If you want about 355 horsepower, you rebuild your 350 with higher compression 0.030" over slugs), but if you think about you really want a rebuilt SBC 402 because 406 to 425 horsepower out of a motor wearing 283 decals and the same tin and air cleaner, and for all the world being a 283 just makes more sense to me.
To quote old Charlie Chan "All you lound eyes rook arike to me!" when it comes to Chevy's small block they all look alike on the outside but can nearly double their displacement by choosing the right parts for the inside.