what causes my car to hesitate as i drive it down the road on 1990 Buick Riviera

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
it is kinda a loping feeling
(2) Answers
There are literally hundreds of things that can cause that. I recommend you have a diagnostic test performed.
Check Mass Air Flow Sensor, Clean Throttle Body, Replace Idle Air Contol Sensor