There are two groups on the fuel pump/system question...
Big and just enough.

I run two #8 lines out of the cell to a Y-block, short pipe (.4" ID) to my fuel pump. Then 1/2" aluminum line up front to the regulator. Then two #8 lines from the regulator to the carb (over kill IMO). Times in the sig.

1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1