Ordered a gear vendor, help with deciding gears

Appreciate that! Would like to get this build right the first time without taking the Dana 60 out again to change gears haha.

yeah originally I was going to do a 4L80e built trans by Jake’s performance m, but didn’t want to cut up my tunnel that bad and Blueprint Warrenty covered there engine and 727 trans. When I put my nitto 325 tires in I’d like to have a high gear and get those tires to hook for some serious acceleration.

so guess I’m stuck with deciding 3:55, 3:73 or 4:10 gears.
The GM trans from what I remember doesn’t require cutting up the tunnel. BUT.....
The required parts to swap it in and associated parts to modify (IE; driveshaft) make the swap expensive vs a factory OD or other manual transmission “kits” that do the same thing.

What is the final OD ratio of the transmission?
Size of engine and the cam specs?