I have Harley open pipes running 130 mains and tuned for highest idle but. No airbox mods at all. It's not comfortable at 80 really it has no guts at 70 and above and higher throttle is needed. It just doesnt cruise. Its like it has to try a touch too hard to maintain 70. Its not revinv to hard by any means but i just keep looking for a 6th gear to keep her comfortable. Would a screen make any difference?