New OEM gas tank for 66 valiant but want 1/2 lines to carb?

I was looking at the FBO website and they have 5/8" to the fuel pump and 1/2" to the regulator and 3/8" to the carb. They listed this setup for 13-15 second modest street and bracket racing car. May be overkill for my car but I would like to be in the 12s as well DJVCUDA. Wondering if this is an improved fuel delivery approach for a street/occasional strip car.


Would 1/2" to the fuel pump and 3/8" to the regulator and carb be some what more practical as opposed to the setup below from FBO?

Still qeustioning where the best place to mount the fuel pump?

Thanks alot