1955 1st Series Gas Tank Question

[akeane01]

I have a 3100 1955 1st series truck that has been sitting for about 10 years and has not run at all in that time period. I got the truck recently and am now working on trying to get it back to a running state but have a question. I am sure there was gas in the fuel tank back then but not sure if there is any left now but i can see nothing in the carb or the inline fuel filter that was put in. What are the issues in letting gas sit in the tank for so long? Does this pose an issue or can gas just be added?

Also is there any issue with unleaded gas with these engines?

thanks