I have a 1985 honda 350x and use it stricktly for running the local river in the winter and am wondering what motor mods would be beneficial to me the trike is stock except for a full dg excellerator exhaust system I have put a 15 tooth front sprockrt on it and a rad rear bearing carrier other than that this thing is stock I was thinking a 10-25-1 wiesco piston with cam not sure whitch one and all new valves springs and retainers ECT>>> what i am trying to achieve is more speed with out loseing much bottom end. the river I run has tight woods style turns and also open sweeping corners that I can take at wide open right now. I am knocking on the back door of a lightly mod 400ex and would love to be able to go by with ease. Some times in early winter the river is glare ice and late there could be packed snow on it and right now is when i have trouble holding top speed
Really apperciate all your guys imput