On my build time to install the carburator.edelbrock 1406 with electric choke.the manifold i have is the edelbrock preformer and the guy that sold it to me gave me the 1 " spacer and the four studs two shorter ones and two longer ones. extra torque i understand by installing the spacer..the problem is i have 1 carb gasket that would go between the spacer and carb.would i use gasket cement on both sides.the other question is there a spacer gasket that needs to be installed.and whats with the four extra holes in manifold beside the carb studs.