Here's an article I found (there are many) for a blazer swap. It mentions fuel lines among other parts of the build. Looks like they added fittings to their sending unit along with a high pressure pump. Some other useful info too for those that want to keep the 700R4. http://www.trucktrend.com/how-to/engine/1111tr-6l-engine-swap-1982-chevy-k5-blazer/ I'd like to keep as many OEM parts too, helps with future servicing and repairs.