What AFR are you running? How fast do you travel? Do you have an instantanious MPG display, if so what are your typical readings? What other mods do you have to your car? I assume you are running a wideband, which one?
Give some more details and I will help where I can.
I'm running around a 17:1 AFR, driving 50-55mph with aeromods and very LRR tires. My instant readings are in the mid seventies with this set up.
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