you can buy pre-made kits with everything you need from most of the big chassis shops.
Chassis Engineering
Jerry Bickel
R J Race cars
S&W racecars
Jegs offers a kit
Alston
Chassis works
you can also get all your parts from the Dirt Track part suppliers for a resonable price to configure your own.
Here is a break down of parts needed.
1) steering wheel of choice
2) quick disconnect coupler for steering wheel for 3/4 tubing
3) some type of mount to attach to dash. they make a oversize Heim joint to do this
4) a firewall mount
5) a universal joint couple that adapts to your steering box
6) about 3-4 ft of 3/4 o.d tubing
I will look for the pics I have of my setup I made for my cuda and get them posted in the next day or so.