k so just an update in my quest for 28mpg.

Timing is at stock, valves are adjusted. Running new NGK plugs, new cap and rotor, new fuel filter.

Still getting 20 mpg. I got 25mpg for two tanks when i changed out the plugs. Im going to pull the plugs tomorrow and see how they look. What else can i do to get my godamn mileage back?