Having a gen1 and a gen 3 Chevy V8 Z car, I can tell you there is nothing like an ls/t56 combo. It just plain works. Get in,turn the key and go. I know you can Lso xo that with a gen 1 but it will take a lot longer to get there. My advice would be to cut your losses, make back what you can, and find yourself an ls2/t56 combo. You won't be sorry.