proper size fuel line

[Jaxsc3]

just looking for opinions or facts on what proper size is for fuel line to make lets say 1000 hp. and also size for running 2 fuel lines to the rail. im just looking for the right size line without going overboard and wasting money on bigger ss line than i need

[scnat]

1000hp -8

550hp -6

[98mkiv]

the largest lines you can run....

OR

figure out what your brake specific fuel consumption is and then you can size the line...

[DaveH]

500rwhp on the stock line is fine, just make sure the fuel filter is fresh. If you need more than that, run a -6 line along with the stock line and you are good to ~1000hp.

[Jaxsc3]

yah i ended up going with an a1000 for a fuel pump so ill probably do -10 or -8 line