It will make some, allowing the engine to "breathe" a little better. I would stay on the small side on the carb, 650 cfm, for a bone stock engine. Or you could find a spreadbore intake and run a well tuned Thermoquad on it.
If you go ahead with the very good suggestions, don't overlook your ignition timing curve. The initial, total and RPM at which it occurs can optimize your engine package.