Tundra fuel rail

[Treynon]

Does anyone happen to know the limits of the tundra fuel rail? I will be using E85 so I'm just trying to figure out if I need a larger bore rail then stock with my hp goals. Thanks

 

[Treynon]

I think I got my answer. If they are the same dia. as the 1uz rails then about 400hp before they start getting restrictive.

 

[cribbj]

There are guides all over the Internet on sizing fuel rails, but here's one from the AEM manual and it gives both gasoline and methanol: