So I just remembered my engine isn't stock, I had it rebuilt a few years ago. Bored .40 over stock, so its technically a larger engine. Would this be hurting or helping my fuel mileage? I'm getting pretty close to 35 mpg with no real mods, so 40 mpg with some work seems possible for me still.
Just curious what you guys think it would do. I am thinking more displacement = more gas, but I'm not an automotive engineer.
