Just picked up 83 GL, 108K miles. In great shape. Everything works great, runs good, with exception of the sputtering /stalling when starting on gas from a stop, or when at speed and stepping on, it bogs down for a second, then back on again.
Its a drop in power for a second then it kicks in. Does it at stops, and when cruising. I checked for vacuum leak using propane. Did not find any. Also disconnected EGR, no change. Put new fuel filter in, still there.
Looking for help or others with similar issue and what was the fix?