Turbo plans

I would not run a TBI on a high power turbo build. Port injection will give much better fuel distribution and you don't want one cylinder lean under boost. Gill Welding does multiport manifold conversions work if you need someone to set up the manifold.

Also, a GT45 is a pretty big turbo for a slant six. I'm running a GT40, and even that may be larger than necessary.

I'm running a Fel-pro gasket myself, but so far I'm keeping boost at 5 psi until the motor is broken in.