David,
If your Speedster is from Vintage, check there with Kirk. He should be able to either do it for you or let you know if and how to do it.
The column is usually glassed in where it goes through the front fire wall. the mount point near the steering wheel, under the dash on the cross brace, should be slotted to allow for some adjustment. When you look at this mounting point, it should be obvious if and how much it can be moved without major alterations.
Be aware that the column is very close to the bottom of the gas tank where it passes through the fire wall. Moving the column may cause the steering shaft to rub on the tank as you steer. It can be adjusted or clearanced, but this is also one of the considerations/limitations.
Greg