Gearing ?

I'd never own another car without an OD of some sort.

Amen. I haven't raced in years but I'm gonna try to make a few passes this year in my street car. I have 3.23 gears and a 27.5" tall rear tire, that's about as steep as I can 'personally' tolerate on the street and highway, around 2600 at 65mph.
I know the 3.23's aren't optimal for the track but the stroked big block will certainly help.
My next car will have a Gearvendors and 3.73 or 3.91 gears.