Adjust it according to the service manual.I had it adjusted to 10 counts at idle and 70 in gear. What do you think went wrong?
Nearly every time someone messes with the base idle screw, they have problems with idle speed, IAC operation, or sticking throttle blades until that screw goes right back to where it was.
Yes, of course verify lack of vacuum leaks, PCV operation, general engine health and "tune-up" parts/services, and so forth.