Went through the platinum routine.......back to standard.

Problem exists only upon start-up or from full stop.

Runs great at any speed and idles fine.

Start-up problem gets worse when warm as time from shut-off increases, ie., 5 minutes OK but 45 minutes bad and 1 1/2 hours terrible.

Acceleration from full stop - engine stalls when punched (in other words no left turns unless there isn't a car for miles!)