Changing the steering ratio?

My toy has power steering (which I like), and seems to have about 10 turns from lock-to-lock (which I don't like). Has anyone retained their power steering, but changed the steering ratio? If so, how?
thanks in advance...

may want to check places like marlin crawler , downey off road and maybe yotatech. The 4wd guys change out their steering setups quite a bit.

check out some circle track places, they use a steering quickener thing that goes on the shaft between the box and wheel

Thanks guys!