Took a while but caught up. @krazykuda , Hoppy told me you might have what I am looking for. A bolt on timing tab for early small block. Passenger side.....
I've heard that they are thinking of giving only the first does to try to get more people immunized, however that's not how they tested and certified the vaccine...
Not a good idea if they do not have any test data on taking it that way, take it the way that they tested and certified it...