I'm thinking about making my own upper intake manifold....but I don't want to have my car down while I do it. Does anybody have a drawing with dimensions or a DXF file that I can use on a CNC mill to make the flange?

 

I've got a handful of them modeled up. PM me which flange you're talking about and I'll check (it'll take me about a week to get back from vacation and check)

runners to lower plenum? DE or HR?

 

I would like to get the flange layout for the runners...upper and lower end of them.

 

would taking the measurements off a gasket help ?