Here's my story.. My mods are below, and I begin to run lean at 5500 rpm. AFR is 11.9 at 5500 RPM but on the rise. Now these runs on the dyno were with stock fuel lines, stock fuel rails, a 255 lph in tank pump and an Anderson Big Pump inline pump, along with 50lb injectors and a 1:1 AFPR. Im...