Couple of questions since VA doesn't have records for the old boxes.
1. How many settings do I run on the rotary switch
2. Anybody know the correct wire to cut out to get rid of the timing?
Most all pressure boxes do the same thing so they are all about even. There are some boxes the do pressure and timing and VA made some of both so make sure which unit you have. The Duramaximizer is a pressure only box.