Biggest smallblock?

Okay race guys, can you fill me in on some of the various smallblock stroker combos and answer a few questions in regard to them?
What is the largest displacement engine that can be made with a Mopar smallblock?

1) stock 340 block
2) stock 360 block
3) performance block

What are the advantages and disadvantages of the various blocks and sizes?
Can stock heads still be used productively without extensive work?
What kind of numbers will these combos produce with modest components?

Thanks for your input.- John