Stroker motor combonations

I looked through past threads and nothing really stood out to what I wanted.

I am having a stroker small block built for my dart based off a 360 block.

I am looking for a combination that can run on pump gas and stock block.

I've seen plenty on r3 blocks ect but not many on stock blocks.

I am looking for 600+hp

I realize I can't get that from 408 stroker but I'm just starting this thread to see if it can be done.. How big can I go on a stock block? Thanks a lot