Trying to plan the fuel system. The pump has 3/8 NPT fittings which have a hose barb that is 1/2" OD and 3/8" ID.

So I'd like a minimum of 3/8 ID everywhere. I really don't want to use a lot of rubber line. Also, I don't know what NHRA likes,
(although that's not the biggest concern).

There is 1/2" OD aluminum line and there is 1/2" OD copper line, these should be 3/8 ID but I cannot seem to verify that.

Has anyone used either hard line without any problems ? Or what kind of problems did you have ? One problem I could see
would be corrosion with any alcohol in the fuel.