1995 Dodge Ram "96 blinkers don" Questions

...96 s10 blazer with a 4.3 starts hard idles rough wants to stall has misfire and when I turn on the blinker the battery gauge moves with it and when in park if I Rev the motor the speedometer and oil ...

...blinkers don't work on my 96 4dr blazer i checked the fuses and they are fine what could be the problem? First check the flasher, if its ok the problem is probably in one of the printed circuit ...