Your best bet is to get the factory service manual for your car. Second best choice is to pick up the Osborne reprint of the 67-69 tilt repair manual. Spend some time staring at the diagrams and reading the text,
The first thing is to determine if you have all the necessary parts. Second is to test everything to see if it functions properly. Assuming everything is there and tests OK, you need to plan for the installation in terms of holes to be drilled and wires to be run. If your car has functioning factory A/C you already have a vacuum canister and vacuum lines passing through the firewall that can be shared by the tilt-away column. The door post will need a hole for the pin switch. The tilt-away feature is a true "Rube Goldberg" contraption. It involves a trigger (door pin switch) that sends electicity to a relay which in turn activates a solenoid valve which opens to provide a vacuum source (stored in the under hood vacuum canister)to the vacuum motor (both mounted on a bracket that attaches to the dash support brace to the right of the steering column)that pulls a cable which releases a locking pin inside the column freeing the column head to tilt away under the tension of a spring. Additionally, on automatic equipped cars there is a neutral start interface that prevents the car starting unless the steering column is pulled back down to the "drive" position from the "away" position.
As I sugested earlier, stare at the drawings long enough and it will begin to make some sense.