We ran the fuel lines inside the car on the passenger side,we used a AN bulkhead fitting behind the seat,and one on the firewall,we increased the fuel line
to 3/8" we used AN "b nuts" and ferrules,the brake line is also inside makes for a neater deal (my opinion) never liked the stuff under the car.
We also mounted the fuel pump on the trunk bulkhead, rather than in the trunk or in the false battery box easy to service.