have the fuel to accomodate for the increase in power = less wear and tear on the motor - if you dont spray fuel, you will run lean and lean isnt good :-D ..when i run mine i actually run it a little rich, i have a 53 pill for fuel and a 47 for nitrous just to be on the safe side. i also have an msd box with timing control so i can adjust the timing while im in the car when i spray
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