I'm thinking of building a fuel mixture control mod to richen my mixture. Before you ask why, see the attached dyno chart. The chart is the before and after of my exhaust mods. Originally, these cars run too rich for best performance. My car flows so much more, that I actually run too lean for optimum performance. I want to use the old in-line resistor trick that many people normally scoff at. Normally, I would agree with them. However, with my "lean" engine conditions, I'm thinking I can add some power back by richening the mixture. Any thoughts?