Find some small computer tools which you can use to tune Vespa.
The following programs are combined in the pakage:
-GSF Dyno is primarily used to calculate the output curve of a bike.
-Head calculates the geometry for your 2 stroke motor head.
-Exhaust Time Area calculates the chord and port-map geometry for your 2 stroke exhaust port and it's Mean and Blowdown Time-Area.
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