this winter i have plans to get a more agressive cam, as well as some full roller rockers (also going from a stock 1:6 ratio up to a 1:7).
so what your saying is i may be better off without them, even with the mods? my engine is all about low end, but the exhaust is holding it back top end, and im sure replacing the stock downpipes and cat will help, but my goal here was to even out the power band a little: sacrifice a little low end, but elimiate the flow restrictions holding back top end. make sense?