My Impala is surging/lunging forward and dies only in drive, when coming to a stop, or stopped with the brakes on. When in park or on the highway it is ok and idles fine. I tried to increase the idle and it only slightly helped.
At first I tried electrics: new electric voltage regulator, battery check, alt. check, alternator charging check, replaced plug in voltage regulator, and a new battery cable. The car starts fine after it dies and the alternator charges fine.
Other Checks: I sprayed carb cleaner around carb and manifold and found no vac. leaks.
What else could it be????????
It is a 64 impala with an old 350 in it but otherwise it is all stock.