What do you mean by "cutting" ? The wildcat system doesn't cut any stock lines, it replaces all the lines from the frame rail line inlet to the lift pump and on to the VP. There are other systems out there that totally replace all the lines and still don't cut any stock lines so you could go back to the oem system in case of an emergency. Take a look at the FASS, Fuel Prep, PE4200 (Rip Rooks website). I have the Wildcat big line kit and will be adding a PE4200 to cover the rest of the way from the tank.
Hope this helps or maybe I misread your post?
Good Luck
Craig