Thanks everyone on your help wih my hesitation problem. You all are obviously the people I need to ask for help. My turbo Rambler, draw through carb, is coupled to a Turbo 400 tra nsmission. When modulator was hooked to manifold below turbo, trans would not shift at all under boost. When hooked up between carb and turbo under boost trans would shift instantly through gears to high gear. When engine was in my 65 American I was in high gear by the 60 foot beam. In my roadster which is strictly street this is not a big problem as I am seldom under boost. How do you guys hook your modulators Up. Thanks Mike