Thanks GMR and LC110 - reading on the differences between air cooled and twin cooled 110's and there is mention of changes to the cams related to the engine changes on the Rushmore bikes. This is from the article "Six Things You Should Know About Liquid Cooled 2014 Harley-Davidsons" on motorcycle.about.com...
"You may have heard that Harley has boosted engine output between 5 and 7 percent, which might make you think those gains are all due to liquid-cooled heads. But that’s not entirely accurate. The engine improvements which came with Project Rushmore include new cam profiles with higher lift and duration, which aids overall performance. But both the standard and Twin-Cooled engines see the performance gains."
So the questions that are now stuck in my head include but are not limited to

... "is this a new 255 cam or did the 255 cam just come out with the 2014 twin cooled bikes? And if the 255 has been around for years and people are comparing cam choices, are those comparisons against the old 255 or the new Rushmore 255 they reference in these technical articles?"
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