FF2 -your link is for the fuel level indicator not the fuel regulator. The EFR-801 controls the flow through the needle valve. You open it up about 6 turns and let it control the fuel flow by sensing exhaust gas temp. I have one but haven't installed it. The need for a seperate battery isn't attractive to me. It seems more suited for planks, but if you can't set the needle on a plank you got bigger issues to deal with
Vince D