I have an 89 GT with about 98k on it and if I take it easy , and take it up to 3 and shift, and maybe 1/4 of the miles on the highway I can get like 22-23 mpg it's awesome, but also when I used to drive hard most of the time I got like 11-12mpg, so it all depends on the way you drive. See ya.
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3:55's,BBK Off-Road H-pipe,BBK jet-hot coated equal length shorty headers,BBK 70mm Throttle Body,BBK adjustable clutch quadrant,C & L 76mm Mass air meter,Cobra R's 17x9 w/ 245's,Trick Flow Intake,Flowmaster Force II exhaust system, Super Duty T5,Centerforce II Clutch,Heavy Duty Radiator,9mm Ford racing plug wires,Accel cap and Rotor
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