What do I do ?

[02 zx 50 s.f.]

Ok first let me thank z he has been a huge help for me. Now I have orderd the 30 mm carb new intake manifold but it has no spot to put the vacume line for the petcok what do I do?

[Shaka]

I ran into that problem on my manifold as well.  I ended up pulling the brass nipple out of the stock manifold and installing it in my new one.  I drilled a hole the same size as the nipple and press-fit it (with a dab of JB Weld as added security) into the new manifold.  It worked out great!

[zombie]

30mm? I drilled into the top of the intake side of the OKO. It has a small dimple there for just that purpose. Like Shaka said using the old pipe, and JB weld.
That is the first 30mm I've heard being used on a zx/dio. Keep us posted...