My truck was idling really rough and I couldn't figure out why. The timing was set and the carb was adjusted. Then, when I was about to give up for the night, I saw a vacuum line just hanging there. Not plugged or anything. Found out where that went, plugged it in, and the idle got ALOT better. It still idles a tiny bit rough but I think that is because I need a new fuel filter and I need to dump some B-12 through the Carb. Thanks everyone for your help!

 

fuel filter shouldn't effect idle quality, if it's plugged, it will stall, not run rough.