Here's the problem. I have a Borg Warner 72C behind a big block Buick. Motor starts right up. Put the trans in gear and it will move forward and reverse. Place the boat in the water and the engine strains and the boat will not move. Would there be a valve in the trans that is moving or blocking a hole for trans fluid flow when the trans is put under load. Wonder if Clint would have the answer to this one since he is knowledgeable on the damper plate, which I have had to install in the past. Any words of advice would be greatly appreciated. Century63