i have a 96 9c1 with 65,000 on it and it will run good some days on 1996 Chevrolet Caprice

and other days it will shut off well im driving

Asked by for the 1996 Chevrolet Caprice
If shuts down like a light switch shut off then is likely related to ignition circuit and likely the module. If coughs then likely related to fuel delivery and needs the fuel pressure/volume checked.