Ok, I got my idle rpm right where I need it (550) when in drive. I go for a ride and everything is good - sometimes I have hard start after it's been sitting after a drive (flooding I think). The problem I'm having is when I'm driving, occasionally if I floor it (40 to 60 mph), after I slow to a stop, the idle is up around 750-ish. If I tap the throttle the idle will go back down. Any ideas?