fast ratio steering box

looking for 16:1 manual box, small sector to fit 66 dart. will consider OEM type box .. if anyone has a flaming river box laying around, that would be great too. please PM with what you have and your price,

I gotta tell you....I have a 66 Barracuda with factory 16:1 fast ratio manuel steering, and believe me you will get a lot arm exercise when you want to park your car. I am seriously thinking about changing it to the 24:1 for this reason. Sorry, but the 16:1 won't be for sale as if I decide to change it out...it will stay with car.