I have kept a number of magazines over the years. I am particularly happy to still have 1972-73 superbike comparisons from Cycle, Cycle World and Cycle Guide. In going though some of these I found my May 1974 Cycle World with a Norton hop-up article by Jody Nicholas, with an assist from Jerry Branch. Haven't seen a reference to it on this board, and don't know it is legal to post all or part of it. Would be happy to do so.