Fuel line size upgrade?

[turbomark]

At what Hp level does it become worthwhile to increase the size of the fuel feed line over the stock -6 ??

 

[azgn]

I would say about the time you are making 700+ rwhp......you must also increase the size of the return line if you deliver more volume

 

[postal]

Pumps and lines both affect each other. You can get away with smaller lines if you have enough pump or you can run less pump if you have better flowing lines.
Now the stock lines must very alot maybe d/t corrosion and blockage and such. Some people need to step up to bigger pumps or lines much sooner than other guys.

HTH: Jason