Why a Reverse Valve Body?

..........If u leve off the kd linkage u will burn up the trans from low oil pressure.............if u tie it back, it will NOT shift out of 1st gear.......the govenor pressure cannot overcome the line pressure..............kim........

Are you positive about that? I don't see how the trans would know if it was tied back, or was just being held back by the linkage with your foot to the floor? Also, I drove my '67 Barracuda for 3 years with the kickdown tied back, and it still shifted hard when I pulled it. I only could drive it on the street due to the 4.88 gears. A high geared car would be doing 100+ mph. before it would go into high gear.