66 Chevelle Steering Help

Does anyone know what manual steering box would work in a 66 chevelle to tighten up the steering ratio?

WOW...this is one of those times I wish I had a good memory. But I did find this online. http://www.1aauto.com/products/strgbox/index.php . Supposedly this will change your "4-turn" lock-to-lock steering box into a "3-turn".

Oops!! Sorry :). That one is for power steering conversions. Try this one. http://www.prosteering.com/m_chevrolet.htm

Oops!! Sorry :). That one is for power steering conversions. Try this one. http://www.prosteering.com/m_chevrolet.htm
Thanks for your help!