All you need is a good donor four bolt linkert intake.
First cut the end off of it.
Second get some aluminum bore it out and mill it down to the exact size so the brass intake seals go on smoothly.
Third weld the intake to the freshly milled down intake tube.
Fourth bolt that linkert on and away you go.
If anybody needs any help with specs and exact sizes feel free to ask I was goin crazy until I just thought just make one easy enough.