What would You Choose and More Importantly WHY?

I voted 273/833, but a 904 would be fine too. My Skylark, Firebird, and Mustang are all lazy V8 automatics, and I always miss their effortless power on the freeway or when I'm passing on a two-lane road. The 225 in the Dart is always comparatively straining...I love my Dart, but I'd love it more with a 273.

With that being said, I'll probably never do a swap because it's all right for what it is, although an 833 would go a long way toward making me enjoy it more over the wide, wide ratio 170 3-speed gearbox that's in it.