I'm 6'5" and have dropped the floor pans in my car 3" to accomodate my height and get me looking through the center of the windshield.
http://picasaweb.google.com/levingsk...51848360410514
I also have the drivers seat on a slider so it can be adjustable. I mounted the passenger side fixed, all the way back. Proportionately, I think that it makes for a good look since I'm in the car and not sticking out over the car.