Qadrajet vacuum line problem.

I have an 85' chev suburban. 350 "L" w/carb.I replaced the head gasket and the vacuum lines broke like twigs, I repaired most of them except for the vacuum source for the q-jet choke( intake or temp. sensor). and which ones I can do without.(disable EGR system) I have an A.I.R. system on it and wondering if I really need it? Thank You in Advance, any help would be greatly appreciated.