Well.....the kids come home when they need something....lol. stay with bosch if you can and iridiums is correct. The tranny with those miles certainly needs fluid and a filter. Having SRT's I can't answer your stuggish questions but maybe clean throttle body and check for vacuum leaks around it's base, make sure no hoses are cracked and causing a vacuum leak. Do a throttle body reset a couple of times see if that helps.