i would:

use the trick flow heads

run a solid flat tappet around 245*@.050, 108lsa if you want a bumpy and stinky idle, 112 lsa if you want it a little smoother and cleaner. i would consider 112 but talk to someone that knows (fast68)

probably not bother with a stroker because you have plenty of gear with a t56, i looked at that a while back, i would run a 4.30 rear gear and then cruise on the highway in 6th at around 2000-2200 rpm...but that's alot of money and work. i think i'm gonna just run a 727 with good converter in my car.

also, i would quit worrying about how much power it makes. build a good shortblock with flattops, quench, trick flow heads, use the SD intake, and pick a cam that gives you the chracteristics you want...it makes what it makes...it will still haul ass whether it makes 500hp or 600hp...