Here's a pic of a 300 with a Whipple supercharger.
I'm going to be building my 300 to run EFI, a Lightning supercharger ( Eaton M112 ) with an air to air intercooler. But it'll be a while before I get it done. Working on the rest of the truck first.
There are no kits out there so if you want to run a supercharger you better have some fab skills or the money to pay someone who does.