Yeah, but Steve, that's with 13,000 rpm available, back in normal mortal land 15/39 on my '28 which is 128mph at 12,000 rpm (that's all the rev's I'm going to see), is not quite tall enough at Donington (longest straight I've raced at), 16/39 would make 137mph but it doesn't get there so a 38 is called for.
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