It will work OK as long as you don't plan on pulling a trailer that often. You should feel the engine rev up a little more before it starts to move during more aggressive throttle input. But driving slow with light throttle, it should feel like a stock converter. You will lose about 1 or 2 mpg with the high stall converter.
I have a TCI 2000 rpm stall in my 70 C10, 454, TH400, 3.08 gear, 28 in tall tires, 4000lbs, and when pulling a 3000 lb trailer it will stall at 2800 rpm! I'm sure the 454 has an effect of the higher stall, but you see would I mean.
I recently bought a 1500 rpm stall Hughes towing converter to try and re-gain some mpg and allow towing without excessive transmission heat. But I haven't had the time to pull the transmission to install it.