ProTunnel One
Series
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aka APBA SST-120 Class
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Formally Formula Two
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Mercury 2.0 liter V6 Power
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200 Horse Power
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Top Speeds over 110 MPH
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5 G turns on a circle course
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Race License at 18 years old
ProTunnel Two
Series
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aka APBA SST-45 Class
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Formally Formula Four
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OMC Johnson/Evinrude
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70 Horse Power
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Top Speeds up to 70 MPH
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Economically Friendly Class
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Race License at 16 years old