Another option you can do it what I did with my 79. I'm not sure how the fuel lines will be on your 98 but I'm guessing you can connect them one way or another.



3/8's
http://www.summitracing.com/parts/RUS-640850/
5/16's
http://www.summitracing.com/parts/RUS-640860/

Then get the things you need to make up some stainless steel braided lines like I did for my tank


You will need these for the hard fuel line from the tank.
3/8's
http://www.summitracing.com/parts/EAR-165006ERL/
5/16's
http://www.summitracing.com/parts/EAR-165056ERL/

and while I'm at it, you will needed a pair of these
http://www.summitracing.com/parts/RUS-610020/
and this
http://www.summitracing.com/parts/SUM-230603/

Been using this type of fuel line set up for all of the LS swaps I've been part of. No leaks yet