[VTXRider]

Unless you are tuned to run premium you are just throwing your money away. Higher octane does not mean more HP unless your engine is tuned for it. If you are running regular gas with no pre-detonation then you will gain nothing by running premium gas. If you do have a premium tune you should be fine running 93, race gas would definately be a waste and could harm your motor. But it would smell GREAT!

 

[VTXRider]

Care to elaborate?

Running higher octane (slower burning) gas can lead to unburned fuel fouling plugs. Running leaded gasoline, as it was stated his race gas is, is also not recommended in a stock LT1.