'03 1800c. Vance and hines staggered big shots w/baffles. Arlen Ness air intake big suck stage 1, power commander v. Looking for map. Had dyno tuned, running rich, not as smooth as I think it should be. Thinking about auto tune for it. Bike came with power commander III usb originally. Question also on what spark plugs i should use. Currently use factory iridium. Thanx.