resto project for friend. pro mechanic and myself working on. replaced points, condenser, coil, plugs, wires to plugs, rebuilt carbs. do not know what prev owner did. did find a wiring error to ign switch that did not send volts to coil when starter engaged, fixed that. volts jumps from to 0 - 20 and back. thank you all for help! oh by the way starts fine and idles well for a while. fuel pump and lines bypassed with elecric pump. did find that vacuum guage attached to intake manifold at egr port with adapter read only 5 in vac. should we read at ign vac adv port on carb?