I used 2" lowering springs (coils) all around. Didn't change anything else, and it works fine.
Kinda want to go lower, but don't have the $$ now. Putting the box back on and the 327 in will probably squat her a little more, anyway.
I like the stock giant drum brakes.

If you can't fix it with a hammer and screwdriver, you need a bigger hammer.
1965 Chevy C10