To clean up the cruise and off idle you need to get the idle circuit correct. IMO the IFRs are to big and you need to go down .001 at a time. If I were you I would use a .032 IFR in the bottom position and a .067 IAB as a starting point. Reset the idle mixture screws after motor is at operating temp. If you look closely your rear throttle bores have a .021 hole just below the t-slot to. Set the front t-slot squared up and use the rear to fine tune.
