Torque converter help.

I have a 68 Barracuda with a 360 and a 727. I need a new torque converter. What is the best converter under $300 (or as cheap as I can get) that is worth spending the money on. Also I am not sure what stall I should get it at. I am spending over half the time at the track but does need to be able to drive in town a little. All the help I could get would be great.

Thank you.

Brad