I need some schooling on my new A833!!!

Well this will be going behind my 360 in my '64 Dart, that is mostly a street toy. It's a mild build with measured 9.3:1cr, and a Comp 268AH-10 cam with a 3.55 gear in the back. Currently I'm running a standard close ratio '67 A833. Pulls hard from around 2k-6k. Runs mid 8s in the 1/8th mile as is.

I intended on going to 4.10s this year to improve the starting gear as it's a touch soft off the line.