Had the car on the lift today. Appears that a source of a possible leak is where the throttle linkage turns a shaft on the injection pump. Two photos attached, one from above and one from below. Drove the car home and didn't see any new drips. May have a relationship to how hard the car is driven. Last time I saw the drips was after running it up to 80 mph and 4,000 rpm on a California freeway for about 20 minutes.
Will keep the group posted.