Did you add the electric pump inline with the factory pump? Or did you cut out the factory pump all together? Have you tried spraying around the manifolds/carb with carb cleaner/WD-40 to look for a vacuum leak? Do you have power brakes? Do you still have the original points system or did you upgrade to electronic ignition?
i cut out mechanic pump, no power brakes , the left bank of the intake was sprayed with carb cleaner and the idle picked up greatly , this was why i'm thinking to replce the manifold gaskets . the car still has points upgrade in near future
