Good info. Mine is the stock 3.07 Auto and I do mostly highway driving, unless it's a few streets away to the shops. So the gearing is probably ideal. But, always a but, around town it's so far below the power band. Sure, it doesn't need to be as has the torque to just roll along, but I reckon when my car was stock it was more responsive putting around the streets. And naturally, didn't want to blow the economy when cruising 1hr to work just to improve a 3min run to the shops! Or do I... lol. Like many warmed-over LS1, it's still very docile. You can tell it's had work by the sound, but it doesn't really wake up until the boot goes in, then quickly back off as the speed limit came and went! With medium acceleration away from an intersection, if I plant the foot just slightly it gets the brief vibration and kick that I assume is axle tramp. I'm not sure if the computer backing off to prevent wheelspin results in any vibration or more of a dead spot in power briefly
