05 Tahoe: 5.3 LM7 rebuild. simple upgrades?

[iamdub]

Much appreciated!! This definitely helps but I was more interested in the wires hanging back there. Thing is my buddy worked on that back part and removed the bellhousing and I don't like the feeling of going in blind. Really I haven't taken a close look either so I may just be over thinking it.

Ah. I gotcha. Well, the only wires, as in hanging plugs, back there I can think of are the oil pressure sensor, cam position sensor and knock sensor connections. All are proprietary.

I've been absent for a bit and I think you have this all sorted out already, anyway.