Trying to figure out this issue. Want to see what others think. 06GT with a Kenne Bell stage 1 blower. After many years car developed stumbling hesitation fuel issue. Changed the plugs, fuel filter and fuel pump main items. No change. So instead of chasing the gremlin we decided to change the fuel system to a return style fuel system instead of the factory returnless style. Installed a Fore innovation Stage 1 system for future mods and tuned. Issue went away. Good. However when I fueled the...

Fuel level reading gauge or something else