same motor in the america and speedmaster, but the claimed mpg 71 ! wow, I have not seen any mileage like that out my my speedmasters.
maybe I should coast more
05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter
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