Triple carb manifold questions

[carb_questions]

Hey all, just browsing the forums trying to get some answers to a few questions. First of all I dont have a Porsche and thats not the project im working on. Im actually building a custom manifold to attempt to run the triple throat carbs on a v6 I have.

Now my questions is regarding some basic measurements.

1. Diameter of the manifold tubes where they bolt to engine.
2. Distance from bolt to bolt moving down the manifold.
3. Distance from bolt to bolt at each cylinder.

This will greatly help me in my building of my intake

Now yes I know having one of these would make my life much easier but at this time im kinda just tossing around the idea. Haven t really said yes to it yet.