Ive got a 95 K1500 Im doing a 5.3 swap, for the fueling, Im putting in a 96-98 fuel pump, 99-02 fuel filter, and cutting the factory hardlines at the firewall, then connecting them to the factory ls lines on the intake with high pressure rubber fuel hose and clamps. Ill have a return style fuel rail as well. Also Ill be pulling both lines off the truck so I can clean them and flare the ends that I cut