BTW I just caught your comment about you didn't think it was the chain because you were driving nicely to the store. Hate to say it but that don't mean squat on small blocks. I too was puttering up to a stop sign at 15 mph when mine jumped 3 teeth. A buddy of mine was running down the road at a steady 55 mph and let off the gas without applying the brakes and his jumped a tooth. Don't know how to explain it but they just have a nasty habbit of doing it.
