This is where I stand at this moment. I have 3 people that will trade an entire T56 setup for my trans. Sounds like the stock T56 will hold all my power, but I can NEVER power shift. I t would allow me to do everything I want to, but. Down the road the option to power shift will cost me about $1000 bucks. I would have to do some work to get it in.
2 guys have a 4l80 with just a mild performance rebuild, Will go right in but will not do a standing mile. But would be nice with my LS1 pcm...