I used the distributor cap from NAPA, they make good products. Dont forget the rotor.
Seconded--I put a set of brand-new Bosch plugs in once and she actually started periodically misfiring. The mostly-disintegrated, oil-fouled NGKs were better than brand-new correctly gapped Bosch plugs.Denso and NGK are very good plugs. The only one to REALLY avoid is Bosch.