any advice on a spark plug choice for the 4.3 (2000)? I'm usually partial to Autolite and have a distaste for Champion, but that was back in my V8 days.

While you're at it, how about wires? Taylor DIY set or ready made at local parts house?

 

As it has been said many, many times - if it is electrical, use AC/Delco for best results.

 

taylor wires are great.

as for plugs,ac delcos, OR ngk. (especially the v powers) they love em.

 

NGK... I use the platinums. they work great.

 

AcDelco lasted 1744000 on mine the first time, might as well replace it with the same.

 

note. ac delco platnuims. the coppers last 35kish miles.