Whats the best spark plug for this truck for saving gas? It only has 102000 miles on it. I have the 8 pluged z24 engine.

 

you know the only plugs i have ever used and had good luck withwere autolite and ac delco. i would go with autolite. i have never had a bad plug in a pack of autolites or delco for that fact. but ya i would use autolites, they are a good price and a good plug.