Daaaaavid

I already have the 4L80. Would y’all recommend getting a shift kit? With the tune I am running when I floor it, it will churp going into second. And as far as the engine goes would going to a stage 4 cam from a stage 2 would I get more power? Or will it just give me power lower in the rpms? Thanks

What would you recommend to do to the tranny?

I have a 2006 Silverado 6.0 swap with Basic mods. Mild cam, Cold air, tune ,e Fans, 4l80e.What would be the next step for me be? Looking for more power