swapping 91 wrangler 4.0 for 97 cherokee 4.0 - fuel lines mismatch

has anyone run into the issue where the 91 engine has 2 fuel lines (one fuel line and one return) and the 97 fuel rail is set up for 1? I am swapping the engines and I am unsure of how to tie in the fuel lines. My thought is to swap the fuel rails but am wondering if there is an easier solution that anyone has found?

Well, in order to get this to work we ended up just swapping the fuel rails. this gave us a chance to make sure the fuel rail was clean, and also gave us a chance to clear out the injectors. I saw that i had 21 views but no replies, so hopefully this answers any questions other people are having.