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Gas mileage took a dive

I would have to agree that the change in blend of gas is the bad guy, I lose about 4mpg in my car when the change is made. I never really checked the bike. What I did find with the TFI and up compression and EV27 cam and port and flow job on the heads I did not lose any milage. I still get 50mpg and that's with two up riding. The power is smooth and real strong torque pull, I think the combination actualy helped to maintain my gas mileage, the engine doesn't work quite as hard to get up to and maintain speed.
 
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