360 build for dart swinger

Okay so I'm not shooting for the moon with hp/tq numbers but where do you think I would end using your suggested prescription
Where do you want to be.
Approximately they will make;
First prescription = 300hp
Prescription two = 340hp
Head work to #2 add 25hp

Script 1 is ultra driveable. Grandma would love it if it is quite enough. ;)
You could retain the stock Bwy. gears.

Script 2 would be a nice hot rod docile enough the wife “shouldn’t complain” a best result would be with an increased stall converter and 3.55 gears.