Thought for sure I had it licked. Drove for 100+ miles today without issue. Than it occurred again. Only one time. Pulled off into the berm and waited for a minute, than started on my way gain. I was very close to my exit at that point, so I was not running at freeway speeds for more than a few minutes.

I stopped to visit my father for a few minutes and his suggestion was that the rear butterfly on the carb may be opening for some reason.

The sound that the car was making does sound like bog, just not sure how it could happen.