correct me if I am wrong but didn't the America stay 790 and the SM went 865 in 06 or was that 05? It is possible if you have an America that it is a 790 when the SM was 865 if so the jets might not be the same. I am not sure how the dyno jet kits work as far as jet size, I heard they use their own numbers. With luck someone will chime in that knows exactly what years the America stayed 790 , all I know for sure is it was after 04.

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