Best gears for a /6 ??

With that engine and that list of wants, you ought to be choosing between 3.23 and 3.55, depending on tire size.

In something other than a 7-1/4" rear axle, which you're fixin' to spit out in pieces all over the road.
hi ya Dan - I have tech-mik-eel question about /6 stuff and have been told you may be the man with an answer - can you PM me?