From my experience with the 03 you will find some drag in the drive line. Make sure that your bearings are good a lubed. Another tool that you can use to free up the drive line are the torque-splitters. If you already have one in your car take it out and clean it. Make sure that the housing that holds the bearing in the pulley assembly is not binding up. Try not tighten the two screws that holds the end plate to tight either.
I loved All my ta03 series cars, they where the best in their time. I still run them once in away. But boy they attract all the tracks junk from the surface.
As I remebered I own something like 5 of them? I loved count