People seem to conveniently forget that stock Mopar converters stall in the 1700-1900 RPM range and the factory hi stalls are about 1000 RPM higher. So that means a hotter than stock engine will stall a stock converter probably somewhere a little over 2000 to begin with, since converters respond to torque. There's no reason to spend a bajillion dollars on a "stall converter" when the stock one will be more than adequate, but it's your money. Spend it where you want to.