I wasn't implying the trans and rear end ain't strong enough, or even if you need deeper gears, guess a few races will tell. Was just guesstimating your hp at those rpms you'll spend most of your time at.
Thanks for clarifying.
Yes. In my experience, at least those with older more traditional transmissions (3 speed auto, 3 speed and 4 speed manual), dedicated autocrossers ran steep rear gears.