is there really any gain to switch to a aftermarket billet fuel RAIL?

[greatwhiteZ28]

i always see them on cars, are they mostyl for looks or are they benifitial ??

[Mr. Luos]

I could have easily used the stock rails.
But I do believe they give more flow. But most cars wouldn't ever need that much flow.

I did mine so I could use a T behind the intake and match flow on both sides.
Stock lines do that as well though.

[Sarge]

Stocks are good enough up to like 600HP ( or better) but they is ugly and not purty like my FAST Fuel rails