My old 66 sedan had a 292 with a 2:85 first Saginaw, 26" tires and 4:10s.It launched hard and was still easy to drive on the street. As long as you stay in the powerband of the 230,you should be fine with the 3.50 first. Probably a 3:11 first would be optimal for your combo. Maybe find someone to trade with?
The 8.2 rear will take all that you can give it with a 230. The only issue I had was breaking a then 30+ year old left side axle. I would keep the 8.2 and buy a set of axles....
