Trying to work out where to best situate a fuel cut off valve... I wanted it like the pic below, but due to the design of my pedals, I am struggling for room. So, I have found an ideal location, but higher up. This means the fuel from the flop tube outlet would be traveling uphill to the valve. Is this OK? The engine will be an IO-360, so I am wondering if the mechanical engine pump and boost will be affected by the extra workload....