8" rear gear ratio ?

I have a 68 Fb with 3.00 traction lok rear .............. I'm planning on a stroker kit and some heads , cam etc for the 302 .......... looking for hp in the 350 -450 range .

the car seems pretty hi geared when I drive it now ............. I believe the car was built with 14" tires , it has 15" tires now .......................... toploader 4 speed


what gear ratio would you go to ? .................. I'm thinking 3.80


Can the ring and pinion be changed out DIY ?................. :headscratch: ........................ with a little research and homework of course ??????????? :headscratch::headscratch::scratchchin