Upgraded from 2009 to 2010 SLT Bighorn pkg with 5.7 hemi. 2300 miles and there is a distinct accelerator related, very irritating whistle or whine at around 60 mph. Took it back to dealer, Folsom Lake Dodge, and typical response said nothing could be done because this is normal with the hemi. Did not do it with the 2009 hemi. Do not know whether to believe them or not. This is my 4th dodge pick up, and the first not totally happy with. Seems like this should be a correctable problem if they would only acknowledge. Help.