Don't skimp on ignition parts. I recommend NGK plugs, and Taylor wires/cap/ rotor. All can be had at Summit.
Edit: I would also recommend rebuilding your distributer. New O-ring (which can cause leaks) and new pick-up coil ( also a source of hidden drivability and reliability issues).
[This message has been edited by BlackEmrald (edited 08-05-2013).]