I'm looking at some parts to upgrade the 727 in my Duster over the winter. The engine makes a little over 600 ft-lbs of torque and the transmission is all stock except for the Turbo Action valve body. So I'm thinking of going with a steel drum and some other upgrades. I came across this info from TCS which looks interesting. They have a couple of choices of steel drums as well as an aluminum drum with a steel band on it. Just wondering what a good choice would be for my situation. I drive the Duster mostly on the street but it has enough power to run high 10's at the track and I want it to be safe and reliable.

http://www.tcsproducts.com/media/1/TCS_TF727_Performance_Transmission_Parts.pdf