Anybody running 276 gears?

2.76 is too far, especially with your engine. I run stock ish BB Mopars and I really like 2.94 for what you want to do. 2.76 just kills the torque and makes the converter slip way to much at low speeds. Think of a short wrench or a 14" long breaker bar on a lug nut.

I bought a car with 2.76 and a stall converter. I thought both would need to be swapped. Gears first, went from 2.76 to 3.23 and converter is just fine now, car moves at a lower rpm. Much different to the converter.

Think of a 10 speed bike. 10 gear is great for going fast. But jump on and try to start out and it doesn't want to go no matter how hard you pedal, now downshift and it's way easier to pedal. So same weight, same power, different gears.