im in need of some help

thanks you all.. just got car back from aqlignment shop...drives like a 70,s car..yes the plug is in there are no vac taps or ports being used other dist and pvc ..dist is plugged in to ported vac ..vac pot holds vac just fine,,,the gas is new chevrons finest ...its never backfired carb floats are brass not heavy or sinking and float height and drop is spot on...i dont any longer believe carb is a issue..if it was a holley,id suspect the metering block was leaking air but not this 1405.next step is to follow 67dart273 directions and try following the wires and chec em for resistance, continuity and ohm ..and vacume and chemtool all the gaskets..j. .keep coming with ideas ...please...j