I have owned my GN since 1989 and have kept it stock except for a K&N filter, New bigger exhaust , Updated fuel pump and bulldog chip. I installed a scanmaster that helps a lot. It runs very strong even with 75000 miles on the clock. My question is what can I do for the biggest bang for the buck to get a little bit more out of it and still keep it stock looking. As usually, Thanks all for your very useful help!