Hitting a fork in the road.. The transmission road..

[67chevy_hotrod]

1969 Longhorn, 350 with a 268 cam. 4.10s outback and a th400 in between. Right now I'm turnin 2200 rpm at like 50. (31's for rubber). I know it's not crazy but it feels like it is decelerating way to hard for my liking. Now I understand commpression braking, but i have to keep my foot buried in it even to hold her at 25.. I mean it's crazy once I get to 50 and lift my foot it slows down to like 45 almost instantly that's how wound up it is.. Should I look into gvod's? But I also want a 4 speed.. Should I just do the 4 speed,probably a sm465. I might have a line on a newish gvod for cheap too. Gimme your two cents please!