No NAPA's close, went with BWD brand. The cheap Chinese caps were smooth inside, no ribs. The BWD cap has ribs inside and looked/felt like the better piece.

I used Autolite plugs and wires. The truck had Champions in it, but, I've ALWAYS had problems with Champions, never had an issue with Autolites. Plug wires, basically the same deal as the cap. Didn't want the cheap chinese junk, but, didn't see the need to fork over $$$ for something like MSD wires, especially for a 150K 3.9 V6.