1lostsoldiers 302 head thread, take 2

I read on another site that you can use 1.94 in & 1.6ex valves for a sb chevy because they are +.050 longer and then use the newer stock hemi 5.7 beehives. Has anyone had and experience with that setup or something similar?
How much lift can you run on stock valves and head without mill work?

Thanks

Please keep it civil enough not to lock the thread.