Fox stock fuel line HP capacity?

How much horsepower can stock Fox fuel lines support?

Stock lines on my Cobra, 605 at the tire.

My stock fuel lines, rails weren’t enough to support my Fox at 450ish RW

I'm at a point where I could install bigger lines. The stock existing lines are in prefect shape. Rails are an easy change with a buttoned up car, I'm at the point of debating lines only. Scope creep already has be going full tard, I'm inclined to use the stock lines but don't want to paint myself into a corner capacity wise.