Im reading a book on tuning Demon carbs. What should the fuel curve look like? 14.7:1 is ideal but max power is around 12:1. What should an ideal fuel curve look like? Whats the easiest way to find this out. Im thinking about getting an a/f ratio gauge and welding in a o2 sensor in one of my exhausts. Is there a better way to tune my carb? Im a total rookie when it comes to carb tuning and reading plugs.