Which motor has the most potential for putting power to the ground if it came down to the LLY or the LBZ?

What programmer is recommended for adding horsepower, torque and monitoring things (between Banks and Edge Performance)?

Either motor will put good power down just how much do you want, wont get much out of the 2 your asking about.

Not looking to get 1200 lb-ft of torque. Just maybe 800 or so.

In that case, either is fine.