89 regal stalls when slowing or stopped

Can someone please help? I had 89 regal 2.8L, it stalls when I need to come to a stop. Runs decent on highway but pulls a bit. Dealership said it was fuel regulator, got it replaced, no change. Got new plugs and wires, no change. What else should I have checked? I had fuel pump and igntion module replaced about 2 years ago. Any help appreciated.

Try an injector service.

Thanks for trying to help. I have found that after replacing a bad battery, one needs to have the air intake reset. That was the problem. Hope this can help someone else in the future.