Like the title says, how much hp can the stock fuel lines flow?

 

More than you're likely to make? Well over 500whp. I don't think there are too many guys who have had issues with the stock fuel LINES. The fuel system limitations tend to be the fuel pump and injectors first...

 

Cool thanks for the info. I am running a 2JZ with the stock S2000 fuel lines and just wondering if they can keep up. I think I may need dual fuel pumps if it's not the fuel lines that are holding me back.

 

a walbro 255 is rated to handle over 650whp.