Best Torque Converter mild Commando 273

Try a stock hi-stall gopnh.com. Should stall around 1800-2000. They make quality converters for inexpensive .. Keep it under 2500rpm. How I came to that conclusion is your cruise speed at 60 will probably be about 2700, and most of the time, you'd want your stall speed to stay under your cruise speed, so it's slipping and creating a bunch of heat.

There is another thing, get a good cooler like a 11x11x1.5" B&M super cooler. Biggest you can fit in your wallet and in the space.