Guys,

Thanks for all the responses on this subject. It's been a very informative discussion and I really appreciate your experience and expertise.
I think I will go with 3/8 ID hose from the wing tanks to the header. No filters, a large ID hose for the fuel to flow with no restrictions from the wing tanks to the header is what I want. I may put some clear plastic tubing so I can see the fuel. Also going to add shut off valves between the wing tanks and header.I already have 5/16 ID aluminum tubing from the header tank to the firewall. After that I'll use 1/4 ID hose with a good filter between the fuel pump and carb.

Regards,