Does anyone know what size the fuel lines are? I am looking at using PTFE fuel lines so I will need to convert my fuel system to all AN fittings. Are the fuel lines 3/8th or are they smaller. Seems everyone sells 3/8th size to -an6 but want to make sure before I buy a bunch.

I am wanting to get these as they seem like the most secure type of fitting. http://www.summitracing.com/parts/rus-644123