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Tell us a little about you. What cars you are interested, where you are from and why you are interested in learning to tune.
Agreed and have seen some of this.
The basic principles of the Harley are best described as Archaic.
With only Engine Oil temp and Fuel to keep the engine at Bay,
the addition of any real boost only shortens the life expectancy of the big air cooled Twin for any duration.
They are Very productive for short term "Just get it Done " applications though.