Ab-so-friggen-lutely, the fuel lines are circled below. The orings seal the rubber supply and return hoses on both ends so 4 total orings to replace in the engine compartment. They slip over the end of the metal lines and then the rubber hose ends seal to the oring. It’ll make perfect sense when you tear into it. I used this kit when I removed these lines because I wanted to have plenty on hand for future endeavors but I’m sure any local parts store should have them. They have to be gasoline safe. The bigger of the lines is the supply and the smaller is obviously the return. Blow them out on the intake side and the body side both, on the supply go all the way to the filter with it removed, and from the filter inlet to the sending unit connection. If you keep the OE style sending unit you’ll need the same viton orings for those connections as well. Make good and sure the rubber lines from the body hard lines to the intake hard lines are in good shape, the last thing you want is a a major fuel leak next to the exhaust manifold.
https://www.jegs.com/i/JEGS/555/W523...SABEgLJmPD_BwE