approx speed of 50 mph it surges intermittently until gas is applied.
What is your question?
this problem usually occurs when the car has been running for short while. It feels like the car is not getting gas and is going to shut off. The accelerator, distributor & fuel filter have been replaced. I had the transmission flushed and fuel filter replaced.
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it could be a blockage in exhaust or a fuel delivery problem. id check fuel pressure and look at the data thru a scanner