1990 305
Newbie
If you are talking about the actual idle set screw and it's aTBI that's a big no-no. If you are tying the throttle open to keep it running, you should quit driving it until you get it figured out (I understand if it a daily). If it's TBI I'd bet money on one of the 2 injectors failingI’m using a screw and wire to adjust my idle without messing with the computer