fuel tank, selector valve and remote for MKII Carrier

[rob love]

It seems to me that the valves draw from left, both, or right. Running out of fuel half way through the mission and having to prime all over again, or leaving 2 gallons on the bottom of a tank, are not desirable either. Drawing from both simultaneously, if properly vented and the pickup screens aren't blocked, should draw evenly. I am pretty sure it's how a mk1 carrier is plumbed, and I can't fathom why a mk2 would be different.