homebrew
NAXJA Forum User
- Location
- Bremerton, WA
I tried searching didn't really find anything that answered my question. I have a 91 4.0HO running champion truck plugs. I am trying to find the best gap to give me the best combination of performance and fuel economy. I read in JP that you can increase the gap to help a little with MPG, how much is to much??? Thanks in advance. Paul