Found and adjusted the tab for the secondarys. There was a gap between the two. I don't have a brake booster and currently have my timing @ 18 initial & 18 mech. No vacuum advance. Another reason the shakes bug me is that my cheap summit headers hit my torsion bar and steering box during a shake, should of spent the extra $. About to go outside and re adjust mixture screws now knowing that the screws don't have to be the same amount of turns with a dual intake. Will update results.
