The FI steel line that passes through the car is in good shape. No rust. I just have to redo the repair the PO did where the line must have broken and he (she?) used a rubber line with clamps.





The use the rubber line under the car near the fuel pump and filter.



I think I read before I had to bubble flare the line, use FI rated hose and proper clamps. And I'll clean the lines and maybe POR-15? Is this correct?

you should have some barbs on the line to help hold the hose on. You can paint the line to help protect it. I assume that's the pressure line so FI hose probably 7mm and FI hose clamps.