I have a few 225 questions, hopefully we can diagnose my car?

Don't take that to mean that the car doesn't go up and down at the same speed. I am well aware of gravity. The concern is that the engine sounds very rough while aimed uphill at the same throttle position as aiming downhill. Nothing to do with speed, just the general smoothness of the engine.

Also, just played with the driveshaft and I most certainly need new u-joints. Rusty and clunky.