Mmmmm, no I don't...
Are you talking about everything from the tank to the engine???
Most people that replace everything either go with GM replacements or have them custom fabricated for something larger. I don't think anyone sells a kit, at least not that I have ever run across.
I remember Pro Stock John mentioning something about using 6 cyl. F Body lines...can't remember why though. If you are interested in the 6 cyl lines check out
http://www.LS1tech.com and do a search for his name.
I would take your car somewhere and have a nice set fabricated though and get a set of ARE hi-flow fuel pumps.