70 chevelle th400 converter

[chevelle289]

hey guys me again, okay so i have a 79 355ci SBC with mild mods pushing around say 365hp backed by a 78 th400 i just got from a good buddy of mine. Now what would the stock stall for a th400? just trying to find a good stall speed a bit higher then stock for that little gain in launch speed. and one more thing , does anyone have a vid or pics on the removal and replacement of a valvebody on a th400? ive only been able to find them on like 40l60s