Ouch. You are turning more than 1000 rpm more than the calculator I am using says. I knew the big bricks would take more to move, but did not anticipate it being that much. Thanks for the reply this helps.
So basically you are turning 800 rpm higher than the 1to1 calculator. Attribute 10% converter slippage, and that means about 500 rpm extra due to the brick aerodynamics and other drive train losses.