I have had my 2006 SEUC for about a year. 9000 miles later, have done the following to upgrade performance: zippers 575 cam( fueling oil pump, etc), RH TD, SERT, and SE AC (K&N filter, still deciding to put doherty PACC back on). REcent dyno by Jim brown of bragging rigths got 92HP/102 torque. He felt these numbers were low but could not account for them. (A/F flat as glass). I would still like more torque (110 to 115 range), ride two up and full gear usually 200 -300 mile ride. Looking for relliabillity,not speed, like the 103 engine, passing, performance, and gas mileage. Assuming the 575 cam are installed (have to trust wrench actually installed) what is the next step? change cams?head work? piston/head combo? I have read a bunch of post on various upgrades and I know everyone has their own opinions but what would next logical step be to maximize what i am looking for? any help appreciated , john