1973 340, want more power.

These guys, are down the block from me and I went with them. A lot of people around here suggested them. I like there converter in the wife's '67 so far. Excellent all around.
ProTorque High Performance Drag Racing Torque Converters
Most likely my next mod. What is the Benifit of this one vs my old
Mopar one? Excuse my ignorance