I used to use Grandy bridge for an "Italian tune-up" in my 914.
Fun fact: When I was in high school in Tampa (Hillsborough county) in the '70's you had to wait until 1:00 to buy beer. In Pinellas county (St Pete, Clearwater) which was across the Gandy bridge you could buy beer all day and there was a liquor story just across the bridge. Many early morning trips were made in access of 100 mph to buy beer.
