on lake powell 2017 ar190 top end gone

[Tlcaffall]

[USERGROUP=9]@HELP[/USERGROUP] I am 2 hours boat ride to the doc. I am in lake powell my top end rpm has dropped from. 7400-7600 down to 6700 which means I can't get on plane with a full load. Any ideas? Otherwise runs great...

 

[dzeppos]

Altitude. See my reply to other post. That’s unfortunate normal because of a higher altitude