Simple process as described. Check the ride height at all four corners before beginning. I use the fender measurement but you can also use the frame measurement as noted or both.
Use a gold sharpie or marker to make a line on the spring base "nut" and the lock "nut". Each turn of the spring nut raises the car about 1/8 of an inch. You will need both sides of the car off of the ground with the suspension dangling. It's easier with the wheels off of the car.
You will need to get the alignment checked when changing ride height. These cars are very sensitive to ride height changes, which can affect handling.
Good luck,
Dan
PS Moton's main office is in Georgia. Check the web for info. They are very good to work with.