Changing your EFI to megasquirt with dyno tuning will really show the true potential to all your mods, a bigger cam, o/s valves, head and intake porting. I have an adjustable cam gear and it only moves your powerband around to adapt to what you want. Mine runs best at 0 setting for the broadest powerband. For the trail I advance it 2 degrees as the engine doesn't die out as easily at idle while crawling obstacles, but power drops sooner at the higher rpm.