I have a new tank, sender and guage on my 69. When I'm on empty I can only get 9 gallons or less in. I think the sender is way off. I was thinking of bending the arm on the sender so it sits lower in the tank. I just don't want to take the time to drop the tank again. Winter project? I also was getting a lot of vacuum when I removed my vented cap. I modified my cap so it is 100% vented.
