vacuum lines can be a lot of fun. if your idle is off I'd check for a vacuum leak around the carburetor base and intake manifold. spray some wd40 around these areas and see if it changes the idle speed. if so you've got a leak. vac lines are hard to do if your using different year componets. try just having the distributor hooked up and plug the rest. make a drawing of how they are first so you can hook them back up. i like to hook them up system at a time. dist, egr, hai,choke, and so on. you can also get new vacuum hose and replace each hose one at a time
